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This File contains revisions to the
English version of the
Standard Road Plans
effective for the 04-20-21 letting.
Federal and state laws prohibit employment and/or public accommodation discrimination on the basis of age, color, creed, disability, gender identity, national origin, pregnancy, race, religion, sex, sexual
orientation or veteran’s status. If you believe you have been discriminated against, please contact the Iowa Civil Rights Commission at 800-457-4416 or Iowa Department of Transportation’s affirmative
action officer. If you need accommodations because of a disability to access the Iowa Department of Transportation’s services, contact the agency's affirmative action officer at 800-262-0003.
To: From:
Subject: Revision Date:
Holders of Standard Road Plans Design Bureau
Revision of Standard Road Plan Manual
INSTRUCTIONS: The attached Standard Road Plans have received approval and may be referred to in the plans by number. Questions concerning information contained on the Standard Road Plans should be directed to the Methods Section, Design Bureau, telephone (515) 239-1830 or email michael.thiel@iowadot.us.
Standard
Road Plan Description of Revision
4/20/2021
**NOTE** The following revisions are effective with the 4/20/2021 letting. Projects let prior to this date may reference earlier versions of these Standard Road Plans.
BA Index
BA-150
Changed Obstacle to Object.
BA-200
Added new circle note 4 and renumbered remaining notes.
BA-205
Modified note in PLAN view regarding 22" offset
BA-225
Modified note in PLAN view regarding max offset
BA-250
Removed circle note 5.
BA-251
Modified graphics to new cells in cell library.
BA-252
Removed Interim from standard
BA-253
Modify PLAN view for new cells in cell library
BA-260
Removed circle note 4.
BA-351
Changed Obstacle to Object.
BA-401
Changed Obstacle to Object.
BA-500
Changed Obstacle to Object.
BR Index
BR-205
Modified #4 Bars at 12" Centers to #5 Bars
EC Index
EC-201
Modified trench to 10". Added circle notes 13 & 14.
EC-204
Modified circle note 3 and 5, title and stake placement
EW Index
EW-301
Changed slope in front of guardrail from a 10 to 1 to match the slope of the adjacent shoulder. Added note 3 on Sheet 4.
LI Index
LI-103
Added the HDPE handhole to the precast concrete and composite ones.
LS Index
LS-630
Added NCHRP 350 TL-3 designation to title. Changed Barrier Transition Section contract item to specify BA-201.
LS-631
Changed Obstacle to Object.
LS-632
Changed Obstacle to Object.
LS-635
Update to new cells in the cell library.
PM Index
PM-240
Modified paint lines at railroad tracks and added circle note 2.
PM-242
Modified paint lines at railroad tracks and added circle note 2.
SI Index
SI-241
Modified paint lines at railroad tracks.
SW Index
SW-102
Added note DO NOT USE ON PRIMARY ROADWAYS
SW-103
Added note DO NOT USE ON PRIMARY ROADWAYS
SW-104
Added note DO NOT USE ON PRIMARY ROADWAYS
SW-301
Added manhole depth note and infiltration barrier note
SW-302
Added manhole depth note and infiltration barrier note
SW-303
Added manhole depth not.
SW-304
Added manhole depth note and infiltration barrier note
SW-305
Added manhole depth note.
SW-306
Void
SW-308
Deleted top of manhole.
SW-401
Added manhole depth note.
SW-404
Added manhole depth note
SW-405
Added manhole depth note
SW-513
Modified circle notes 1, 3, 4 and 8.
WM Index
WM-201
Added general note for bid items.
SECTION
Barriers BANO. DATE TITLE
Void Concrete BarriersBA-100 04-21-20 44" Concrete Median Barrier (Full Section)BA-101 10-21-14 44" Concrete Median Barrier Width TransitionBA-102 04-21-20 44" Concrete Barrier (Half Section)BA-103 04-21-20 34" Concrete Barrier (Half Section)BA-104 10-15-19 34" Concrete Barrier for use with Reinforced Paved ShoulderBA-105 10-15-19 34" to 44" Concrete Barrier Transition SectionBA-106 10-21-14 Reinforced Paved Shoulder for Concrete BarrierBA-107 10-15-19 Concrete Barrier End SectionBA-108 10-17-17 Concrete Barrier Tapered End Section BA-150 04-20-21 Side Obstacle Protection with Concrete Barrier and Guardrail
Void Steel Beam GuardrailBA-200 04-20-21 Steel Beam Guardrail ComponentsBA-201 04-18-17 Steel Beam Guardrail Barrier Transition Section (MASH TL-3)BA-202 10-20-15 Steel Beam Guardrail Bolted End AnchorBA-203 10-15-19 Steel Beam Guardrail W-Beam End AnchorBA-204 10-15-19 Steel Beam Guardrail Thrie-Beam End AnchorBA-205 04-20-21 Steel Beam Guardrail Tangent End Terminal (MASH TL-3)BA-206 10-15-19 Steel Beam Guardrail Flared End Terminal For Cable ConnectionBA-210 04-19-16 Guardrail Post Adaptor UnitBA-211 10-21-14 Steel Beam Guardrail Long - Span System for Post Conflicts BA-221 04-18-17 Steel Beam Guardrail Barrier Transition Section (MASH TL-2)BA-225 04-20-21 Steel Beam Guardrail Tangent End Terminal (MASH TL-2)BA-250 04-20-21 Steel Beam Guardrail Installation at Concrete Barrier or Bridge End Post (MASH TL-3)BA-251 04-20-21 Steel Beam Guardrail Installation at Side Object (Two-Way Protection)BA-252 04-20-21 Steel Beam Guardrail Installation at Side Object (One-Way Protection)BA-253 04-20-21 Steel Beam Guardrail Installation at Railroad SignalBA-260 04-20-21 Steel Beam Guardrail Installation at Concrete Barrier or Bridge End Post (MASH TL-2)
04/20/21
SECTION
Barriers BANO. DATE TITLE
Void Cable GuardrailBA-351 04-20-21 High Tension Cable Guardrail
VoidVoid Temporary Barrier Rails
BA-401 04-20-21 Temporary Barrier Rail (Precast Concrete)
Void Crash CushionsBA-500 04-20-21 Temporary Crash Cushions Sand Barrel
04/20/21
1
2
3
4
5
A
A
PCC Paved Shoulder
LEGEND
Reinforced PCC Paved Shoulder
Concrete Barrier
BA-102
End Section
BA-107
Transition Section
BA-105
L2
10'
min.
2'
10'
PLAN
ELEVATION
SECTION A-A
Roadway Pavement
Transition Section
BA-105
End Section
BA-107
112-9
BA-106
108-18B
Possible Tabulations:
Reinforced Paved Shoulder
PCC Paved Shoulder
Steel Beam Guardrail items
Concrete Barrier items
Possible Contract Items:
112-9
108-18B
10'' Preferred minimum
BA-106
PV-101
BA-250
PV-101
.Refer to
Refer to project typicals.
.See
“C” Joint; match existing roadway joints when possible.
.Refer to
.existing, use “BT-3” joint. See “L-2” or “KT-2” joint. When roadway pavement is
PV-101
BA-250
PV-101
Steel Beam Guardrail
L
2
one-way protection
ends here for
Concrete Barrier
Steel Beam Guardrail2
TRAFFIC
ADJACENT
L
Roadway Pavement
TRAFFIC3
13
17''
2''
1
4
5
Side Object
Side Object
Object
Side
BA-150
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
CONCRETE BARRIER AND GUARDRAIL
WITH
SIDE OBJECT PROTECTION
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0112-9.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba106.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-18B.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/epv101.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba220.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/epv101.pdf
1
1
INFODESIGNER
1
W-BEAM INSTALLATION
ELEVATION
PLAN
Rail
6'' x 12'' Blockout (typ.)
Height
Mounting
31''
''21
3'-1''21
3'-1
Height
Mounting
31''
Rail Elements
LAPPING PROCEDURE
Steel Beam Guardrail
Possible Contract Item:
Ground Elevation
10:1 Slope (max.)
SECTION WITH CURBSECTION
16d Nail 16d Nail
Height
Mounting
31''
16d Nail (typ.)
documents
in contract
as shown
(max.)
10:1 Slope
Elevation
Ground
TRAFFIC
NEAREST
2
Rail Splice (typ.)
W-Beam Rail 6'-3''
Elevation
Ground
1
Rail
6'' x 12'' Blockout (typ.)6'-0" Steel Post (typ.)
place post(s) such that Bridge End Drains abut post(s).and Turf Reinforcement Mat) or remove rock as required to At Bridge End Drains, cut Scour Protection (Transition Mat
2
3
3
allowed.
Wood or composite only. Steel blockouts will not be
non-standard curbs.
6" maximum for 6" Standard or 6" Sloped curbs and for
'' spacing.21
at 3'-1
When specified by the contract documents, install posts
3
6'-0" Wood Post (optional)
BA-200
REVISION
04-20-21
SHEET 1 of 4
REVISIONS:Added new circle note 4 and renumbered remaining notes.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
STEEL BEAM GUARDRAIL COMPONENTS
http://www.iowadot.gov/design/dmanual/01e-06.pdf
POSTS
3''
3"
6" 6"
6'-0'' 3''
3"
6'-0''
L = Bolt Length
6"
12"
19"
HARDWARE
T = Min. Thread Length
6'' x 8'' Wood Post
'' dia. Hole43
''85
7
''85
7
'' dia.85
''41
1
NUT
BOLT
''43
7''
W-BEAM BLOCKOUT THRIE-BEAM BLOCKOUT
6"
6"
W6x9 or W6x8.5
''83
''87
PLAN
ELEVATION ELEVATION
PLAN
''41
4
''83
12
''85
7
12''
BOLT DETAILS
Splice Bolt
22''
LTAPPLICATION
''41
1''161
1
''21
2 18''
''21
2 14''
''21
2
Bolt for Wood Post with 8" Blockout
Bolt for Wood Post with 12" Blockout
Bolt for Steel Post with 12" Blockout
10''''21
2Bolt for Steel Post with 8" Blockout6"
12"
Elevation
Ground
STEEL POST AND BLOCKOUT DETAILS
WOOD POST AND BLOCKOUT DETAILS
W-BEAM THRIE-BEAM
Holes
'' dia.43
Holes
'' dia.43
6'' x 8'' Wood Post
'' dia. Hole43
THRIE-BEAM INSTALLATION
6'-0''
Threads recessed
L
T
PLAN
ELEVATION
PLAN
ELEVATION
W-BEAM BLOCKOUT THRIE-BEAM BLOCKOUT
ShoulderOval
3
3 3
3 3
allowed.
Wood or composite only. Steel blockouts will not be
6'-0" STEEL POST
6'-0''
7'' 7''
7''
14"
7''
''43
Holes Typ
'' dia.43
7''
14''
''43
1
Hole
'' dia.43
''85
719''
7''
Holes
'' dia.43
''43
1
HeightMounting
32"
BA-200
REVISION
04-20-21
SHEET 2 of 4
REVISIONS:Added new circle note 4 and renumbered remaining notes.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
STEEL BEAM GUARDRAIL COMPONENTS
4 Thrie-beam post may be substituted for W-beam post.
4
20"
ASYMMETRICAL TRANSITION SECTION
''75
''41
12
''41
6
''21
12 ''21
62
''21
87
''21
37''
81
6
10-gauge Section
''81
4
Splice Bolt Slots (typ.)Post Bolt Slot (typ.)
W-BEAM RAIL
required per slot
One splice bolt
SECTIONRAIL SPLICEELEVATION
'' (typ.)21
3'-1
Post Bolt Slot
12'-6" or 25'-0'' "41
6
SECTIONRAIL SPLICEELEVATION
THRIE-BEAM RAIL
"41
6
Splice Bolt Slots (typ.)Post Bolt Slot (typ.)
'' 21
3'-1
''21
12
''41
6
''41
3
''163
6
''85
7
''41
12
''81
6
''41
3 ''
21
12
''41
6
''21
'' dia. x 243
''81
'' dia. x 13229
''81
'' dia. x 13229 ''2
1 '' dia. x 2
43
required per slot
One splice bolt
20''
Slots
Post Bolt
2''
2''
12'-6"
6'-3"
BA-200
REVISION
04-20-21
SHEET 3 of 4
REVISIONS:Added new circle note 4 and renumbered remaining notes.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
STEEL BEAM GUARDRAIL COMPONENTS
PLAN - CASE A PLAN - CASE B
7
24"
Post Embedment
Case
A
B
5
POST INSTALLED IN BEDROCK
Elevation
Ground
S
R Special Backfill
Drilled Hole
Top of Bedrock
12"
Drilled HoleDrilled Hole(s)
2" min. typ.
HeightMounting
Steel or Wood PostBlockout
Depth to Bedrock
S = 0" to 16"
S = 16" to 52"
R = 24"
R = Post Length - Mounting Height - S
Minimum Depth to Drill into Bedrock
3
POST INSTALLED IN PAVEMENT
6
6
7
Either approach is acceptable.
PLAN - PAVEMENT THICKNESS
INFODESIGNER
2 BA-200
NEAREST TRAFFIC
ELEVATION
PLAN
LAPPING PROCEDURE
108-8A
108-8B
108-8C
108-8D
BA-205
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Modified note in PLAN view regarding 22" offset.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
(MASH TL-3)
TANGENT END TERMINAL
STEEL BEAM GUARDRAIL
Possible Tabulations:
Steel Beam Guardrail Tangent End Terminal, BA-205
Possible Contract Item:
108-8D
108-8C
108-8B
108-8A
1
Impact Head
1
Ground Line
ET = 47'-8"
and Blockout
W-beam Post2
BA-200.Refer to
sheeting.
requirements for Type III or Type IV reflective
- Yellow stripes meet the retroreflectivity
traffic is to pass the end terminal.
down at a 45 degree angle toward the side on which
- Stripes are approximately 3 inches wide and slope
following requirements:
and yellow striped adhesive sheeting meeting the
Cover entire face of impact head with alternating black
455.02
maintenance manual for the alternate design.
Engineer with three copies of the most current installation and
shown. When such a substitution is made, provide the
the end terminal may be substituted for the post design
the manufacturer and accepted by the FHWA for use within
Contracting Authority, alternate post designs developed by
Note: at the Contractor's option, and at no cost to the
manufacturer's recommendations.
specifications. Install end terminals according to the
Use materials meeting the respective manufacturer's
for a list of approved sources.Refer to Materials I.M.
4" max
Post 8Post 7
Post 6Post 5
Post 4Post 3
Post 2Post 1 Post 0
HeightMounting31"
"21
Steel Beam Guardrail Tangent End Terminal 50'-9
from Post 822" offset
http://www.iowadot.gov/design/dmanual/01E-06/BA-200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08A.PDFhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08B.PDFhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08C.PDFhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08D.PDF
INFODESIGNER
2 BA-200
NEAREST TRAFFIC
ELEVATION
PLAN
LAPPING PROCEDURE
108-8A
1
Impact Head
1
Ground Line
ET = 35'-2"
and Blockout
W-beam Post2
BA-200.Refer to
for Type III or Type IV reflective sheeting.
- Yellow stripes meet the retroreflectivity requirements
traffic is to pass the end terminal.
down at a 45 degree angle toward the side on which
- Stripes are approximately 3 inches wide and slope
following requirements:
and yellow striped adhesive sheeting meeting the
Cover entire face of impact head with alternating black
455.02
and maintenance manual for the alternate design.
Engineer with three copies of the most current installation
shown. When such a substitution is made, provide the
the end terminal may be substituted for the post design
the manufacturer and accepted by the FHWA for use within
Contracting Authority, alternate post designs developed by
Note: at the Contractor's option, and at no cost to the
manufacturer's recommendations.
specifications. Install end terminals according to the
Use materials meeting the respective manufacturer's
for a list of approved sources.Refer to Materials I.M.
Possible Tabulation:
Steel Beam Guardrail Tangent End Terminal, BA-225
Possible Contract Item:
108-8A
BA-225
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Modified note in PLAN view regarding max offset.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
(MASH TL-2)
TANGENT END TERMINAL
STEEL BEAM GUARDRAIL
Post 6Post 5
Post 4Post 3
Post 2Post 1 Post 0
HeightMounting31"
"21
Steel Beam Guardrail Tangent End Terminal 38'-3
from Post 610" max offset
4" max
http://www.iowadot.gov/design/dmanual/01E-06/BA-200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08A.PDF
NEAREST TRAFFIC 2
1
3
LAPPING PROCEDURE
12'-6''
1'-3''
VARIABLE FLARE
4
EW-301
BA-200
EW-301
SI-211
.For general guardrail details, see
.For grading requirements, see
.Install delineators and object markers according to
BA-200
SI-211
BA-201
BA-202
BA-205
BA-206Rail Elements
or Bridge Rail
Concrete Barrier
Rail Elements
INFODESIGNER
LOCATION STATION Connection
Bolted
VT1
Rail Splice(37'-6'')
Transition Section
Steel Beam Guardrail Barrier
1
2
Rail Splice
Face of Guardrail
ETVT2
VF
Installation Line
4
3
Rail Splice
(Multiple of 6'-3")
Variable Tangent
(Multiple of 6'-3")
Variable Flare
Variable Tangent
108-8A
")21
(40'-7
for Cable ConnectionSteel Beam Guardrail F
lared End Terminalor
")21
(50'-9Steel Beam Guardrail T
angent End Terminal
(47'-8" for Tangent, 37'-6" for Flared)
End Terminal
Possible Tabulation:
Steel Beam Guardrail Flared End Terminal, BA-206
Steel Beam Guardrail Tangent End Terminal, BA-205
Steel Beam Guardrail End Anchor, Bolted
Steel Beam Guardrail Barrier Transition Section, BA-201
Steel Beam Guardrail
Possible Contract Items:
108-8A
BA-250
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Removed circle note 5.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
7
(MASH TL-3)
OR BRIDGE RAIL END SECTION
INSTALLATION AT CONCRETE BARRIER
STEEL BEAM GUARDRAIL
(varies)Steel Be
am Guardrail
Pay Length for:
BA-206
BA-205
BA-202
BA-201
.See
.See
bridge rail end sections.
for connections to concrete barriers and See
.See
http://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/esi211.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba201.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba202.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba205.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba206.pdfhttp://www.iowadot.gov/design/dmanual/01E-06/BA-200.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08A.PDF
INFODESIGNER
APPROACH TRAFFIC
1
LAPPING PROCEDURE
12'-6''
1'-3''
VARIABLE FLARE
OBSTACLE
L
TVT1
O
Rail SpliceRail Splice
2
1
1
APPROACH TRAFFIC
TRAILING TRAFFIC
A
A
AT
T
ET
VT1 VF
VF ETVT2
VT2
AT POST LOCATION STATION
2
2
(Multiple of 6.25')
Variable Tangent(Multiple
of 6.25')Variable
FlareMin. 12.5')
(Multiple of 6.25'
Variable Tangent
(Multiple of 6.25')
Variable Flare
(Multiple of 6.25')
Variable Tangent
EW-301.
BA-205
BA-206
BA-200BA-200
EW-301
SI-211
.For general guardrail details, see
.For grading requirements, see
.Install delineators and object markers according to
BA-206
BA-205
.See
.See
(varies)Steel Bea
m Guardrail
Pay length for:
OD
Installation LineFace of Guardrail
Rail Elements Rail Elements
Edge of Traveled Way
")21(40'-7
for Cable Connection
Steel Beam Guardrail Flared End Terminal
or
")21(50'-9
Steel Beam Guardrail Tangent End Terminal
")21
(40'-7
for Cable ConnectionSteel Beam Guardrail F
lared End Terminalor
")21
(50'-9Steel Beam Guardrail T
angent End Terminal
SI-211
108-8B
Possible Tabulation:
Steel Beam Guardrail Flared End Terminal, BA-206
Steel Beam Guardrail Tangent End Terminal, BA-205
Steel Beam Guardrail
Possible Contract Items:
108-8B
(47'-8" for Tangent, 37'-6" for Flared)
End Terminal
(47'-8" for Tangent, 37'-6" for Flared)
End TerminalMin. 12.5')
(Multiple of 6.25'
Variable Tangent
BA-251
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Modified graphics to new cells in cell library.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
4
(TWO-WAY PROTECTION)
INSTALLATION AT SIDE OBSTACLE
STEEL BEAM GUARDRAIL
http://www.iowadot.gov/design/dmanual/01e-06.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba205.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba206.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/esi211.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-8B.PDF
INFODESIGNER
LAPPING PROCEDURE
12'-6''
1'-3''
VARIABLE FLARE
APPROACH TRAFFIC
2
1 BA-203
1
A
A TVT1 VT1
VT2 ET
AVF
Rail Splice
AT POST LOCATION STATION
3
3
Min. 12.5')
(Multiple of 6.25'
Variable Tangent
(Multiple of 6.25')
Variable Flare
(Multiple of 6.25')
Variable Tangent
BA-200
EW-301
SI-211
.For general guardrail details, see
.For grading requirements, see
.Install delineators and object markers according to
EW-301
BA-200
SI-211
BA-205
BA-206BA-206
BA-205
BA-203
.See
.See
.See
2
108-8C
EA
APPROACH TRAFFIC
OBSTACLERail Splice
(12'-6'')
End Anchor, W-Beam
Steel Beam Guardrail
(varies)Steel Be
am Guardrail
Pay length for:
")21
(40'-7
for Cable ConnectionSteel Beam Guardrail F
lared End Terminalor
")21
(50'-9
Steel Beam Guardrail Tangent End Terminal
Min. 37.5')
(Multiple of 6.25'
Variable Tangent
Possible Tabulation:
Steel Beam Guardrail Tangent End Terminal, BA-205
Steel Beam Guardrail Flared End Terminal, BA-206
Steel Beam Guardrail End Anchor, W-Beam
Steel Beam Guardrail
Possible Contract Items:
108-8C
Edge of Traveled Way
OD
Face of GuardrailInstallation Line
Rail Elements
(47'-8" for Tangent, 37'-6" for Flared)
End Terminal
")21
(9'-4
End Anchor
LO Min. 25.0'
BA-252
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Removed Interim from standard.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
7
(ONE-WAY PROTECTION)
INSTALLATION AT SIDE OBSTACLE
STEEL BEAM GUARDRAIL
http://www.iowadot.gov/design/dmanual/01e-06.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba203.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/esi211.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba205.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba206.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-8C.PDF
2
Installation LineEdge of Traveled Way
Automatic Signal Footing
C of RoadwayL
TrackofLC
LAPPING PROCEDURE
PLAN
TRAFFIC
EW-301
BA-200
EW-301
.For additional guardrail requirements, refer to
.For grading requirements, refer to
BA-200
BA-205
NEAREST TRAFFIC
")21
(50'-9Steel Beam Guar
drail End Terminal
(18'-9")
Thrie-Beam End Anchor
BA-204
21
LOCATION STATION
Possible Tabulation:
Object Marker, Type 3
Object Marker, Type 2
Delineator, Rigid - Type I
Incidental to Steel Beam Guardrail End Anchor, Thrie-Beam:
Steel Beam Guardrail Tangent End Terminal, BA-205
Steel Beam Guardrail End Anchor, Thrie-Beam
Possible Contract Items:
108-8D 108-8D
OD
")21
(Min. 34'-4
Variable Tangent
BA-204
BA-205
.Refer to
.Refer to 1
INFODESIGNER
BA-253
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Modify PLAN view for new cells in cell library.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
4
INSTALLATION AT RAILROAD SIGNAL
STEEL BEAM GUARDRAIL
(47'-8" for Tangent)End Terminal
ETVT
(varies)Steel Beam Guardrail
Pay Length for:
http://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba205.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba204.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08D.PDFhttp://www.iowadot.gov/design/dmanual/01e-06/BA-253.pdf
NEAREST TRAFFIC
2
1
3
LAPPING PROCEDURE
12'-6''
1'-3''
VARIABLE FLARE
EW-301
BA-200
EW-301
SI-211
.For general guardrail details, see
.For grading requirements, see
.Install delineators and object markers according to
BA-200
SI-211
BA-221
BA-202
BA-225
Rail Elements
or Bridge Rail
Concrete Barrier
Rail Elements
LOCATION STATION Connection
Bolted
VT1
Rail Splice
1
2
Rail Splice
Face of Guardrail
ETVT2
VF
Installation Line
3
Rail Splice
(Multiple of 6'-3")
Variable Tangent
(Multiple of 6'-3")
Variable Flare
Variable Tangent
108-8A
EW-301
SI-211
")21
(21'-10
Transition Section
Steel Beam Guardrail Barrier
")21
(38'-3Steel Beam Guardrail T
angent End Terminal
(35'-2" for Tangent)End Terminal
Possible Tabulation:
Steel Beam Guardrail Tangent End Terminal, BA-225
Steel Beam Guardrail End Anchor, Bolted
Steel Beam Guardrail Barrier Transition Section, BA-221
Steel Beam Guardrail
Possible Contract Items:
108-8A
INFODESIGNER
(varies)
Steel Beam Guardrail
Pay length for:
BA-225
BA-202
BA-221
.See
bridge rail end sections.
for connections to concrete barriers and See
.See
BA-260
REVISION
04-20-21
SHEET 1 of 1
REVISIONS:Removed circle note 4.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
1
(MASH TL-2)
OR BRIDGE RAIL END SECTION
INSTALLATION AT CONCRETE BARRIER
STEEL BEAM GUARDRAIL
http://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba200.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/esi211.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba221.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba202.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba225.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-08A.PDFhttp://www.iowadot.gov/design/SRP/IndividualStandards/eew301.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/esi211.pdfhttp://www.iowadot.gov/design/dmanual/01e-06/BA-200.pdf
108-9A
(length varies)
Protection Length
(length varies)
End Anchor
DO
TRAILING TRAFFIC
High Tension Cable Guardrail
APPROACH TRAFFIC
High Tension Cable Guardrail
End Anchor
DO
End Anchor End Anchor
Protection Length
(length varies) (length varies)
LOCATION STATION
LOCATION STATION
C OA
C
AC O
C C T
INFODESIGNER
Possible Tabulation:
Guardrail, Special Anchor Section
High Tension Cable Guardrail, End Anchor
High Tension Cable Guardrail
Possible Contract Items:
108-9A
BA-351
REVISION
04-20-21
SHEET 1 of 2
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
HIGH TENSION CABLE GUARDRAIL
TRAFFIC
TRAFFIC
Edge of Traveled Way
Edge of Traveled Way
OBJECT
ROADSIDE OBJECT, TWO-WAY PROTECTION
OBJECT
ROADSIDE OBJECT, ONE-WAY PROTECTION
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-9A.PDFhttp://www.iowadot.gov/design/dmanual/08C-03.pdf
TRAFFIC
TRAFFIC
End Anchor
Protection Length
Protection Length
(length varies)
End Anchor
(length varies)
High Tension Cable Guardrail
High Tension Cable Guardrail
End Anchor
(length varies)
End Anchor
(length varies)
LOCATION STATION
LOCATION STATION
C OC A
DO
DO
C O
C A
BA-351
REVISION
04-20-21
SHEET 2 of 2
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
HIGH TENSION CABLE GUARDRAIL
Edge of Traveled Way
Edge of Traveled Way
MEDIAN OBJECT PROTECTION
INFODESIGNER
" Chamfer43
12"
24"
1
1
17"
12" 12" 12"
C
Void area
See Connection Pin
Spacing
Blockout
See Chamfer Detail
Assembly Details
A
"Marked End"
1
8"
B
A
24"
2-4c1
2-5b1
4a1
3
1-5b1
8"
1-5b1
2-4c1
3
17"
22"
32"
4'-3"
6"
4'-3" 4'-3"
12'-6"
6"
4a1 Spa.
6a2 (in pairs)
4'-3"
8"
3"
3"
6a21"
3"
2"
6a2
2"8"
3"
7"
"Marked End"
"Marked End"
4a1
4a1
5b1
12'-6"
5b1
4c1
5b1
6d3
4c1
6a26a2
5b1
4c1 5b1
6d3
4a1
5b1
4c1
5b1
4a16d3
4c1
5b1
1"
2-5b1
3
6d1
6d1
6d2
5b1
6d2
4a1
5"
3
B
2
7"
1"1"1"
Lifting Slot6a26d1
6d2
6d1
6d2
6d3
2Blockout (both sides)
C
9"
4"
CHAMFER DETAIL
PLAN
ELEVATION
SECTION C-CStirrup Placement
SECTION A-ALifting Slot
"41
2
"21
22
''43
"87
2
"85
14
"21
6
2" clear
1" clear to 6a2 bar
" min. clear
43
1
SECTION B-BStirrup Placement
" min. clear
43
1
"87
2
"85
14
8"
"21
6
2" clear
1" clear to 6a2 bar
2" min. clear
4a1
2" dia. Hole 4" typ.
"21
22
" Wooden Block85
Set with 3
"21
7
"21
4
to outside edge of loop bar
" measured from face of rail81
" ± 83
3
"21
25
9" "21
21 "21
21 "21
21 "21
21 8" 9" 9"
4" typ.
24" 24"4'-3"
(Elevation)
BARRIER CONNECTION
bid for "Temporary Barrier Rail, Concrete".
Include the cost of anchorage, when required in the price
cubic yards.
Estimated quantity of concrete for one taper section is 0.6
to 50 mph.
within 10 feet of traffic on facilities with speed limits 40 mph
of traffic on facilities with speed limits 55 mph or greater, nor
Tapered end section is not designed for use within 30 feet
approved non-shrink grout.
Following removal of anchorage, fill all holes with an
site upon completion of work.
shall be the property of the Contractor. Remove from the
Unless stated otherwise in the plans, the barrier rail sections
within one hour of notification of need.
to realign barrier which has been struck. Initiate service
on call and available 24 hours a day, each day of the week,
Provide for an approved monitoring schedule with a person
not lift or move using loop bars 6d1, 6d2 or 6d3.
Use Grade 60, ASTM A615 for all other reinforcements. Do
" of the plan dimensions.81
Install loops within
" pin bend diameter. 21
a 180 degree bend test using a 3
80 ksi, a minimum 14% elongation in 8 inches, and passing
not less than 1.25 times the yield strength but a minimum of
with a minimum yield strength of 60 ksi, a tensile strength of
" smooth steel bars 43
For loop bars 6d1, 6d2, and 6d3, use
1
2
3
BA-401
1 inch radius allowed.
Lifting hole. 4 inch diameter PVC Pipe.
Type A ● ● Date Manufactured (Month and Year) ● Manufacturer Identification
information in the marking:
two loop bars at the bottom. Include the following
end of the barrier having one loop bar at the top and
manufacturing information. The “marked end” is that Permanently mark one end of each rail section with
Possible Tabulation:
Temporary Barrier Rail, Concrete
Possible Contract Item:
108-33108-33
BA-401
BA-401
REVISION
04-20-21
SHEET 1 of 4
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
(PRECAST CONCRETE)
TEMPORARY BARRIER RAIL
https://iowadot.gov/design/dmanual/09b-09.pdfhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-33.PDFhttp://www.iowadot.gov/design/SRP/IndividualStandards/eba401.pdf
16"
Barrier Marker
16"
12"16"
28"
Connection Pin
28"
Retainer Bolt
4
Marker Centered on Unit
2"
E60
4"
4
8"
D=3"
33"
7"
2" 2"
6d3
6d2
6d1
Top Plate
BARRIER MARKER PLACEMENT
CONNECTION PIN ASSEMBLY
" Top Plate 21
6a2
4a1
(Marked end shown, invert for other end.)
Elevation
bars unless otherwise noted.)
(Dimensions are out to out of
BENT BAR DETAILS
(A36 Steel - 10.9 lbs. each)
CONNECTION PIN
6d1, 6d2, 6d3
Plan
Traffic Side
Centered on Plate
" dia. hole83
1
"21
2
"21
1for retainer bolt
" dia. hole85
" dia.41
1
"21
"21
2
"21
2
''41
(ASTM A490, Grade 8)
" dia. bolt & nut21
RETAINER BOLT & NUT
L
L
C Bar
3" to
C Bar17"
"21
34
"43
33
"43
"43
17"
43
20
"41
5
"85
18
"81
3
"21
4
"21
15
"83
4
"815
"41
D=4
"21
D=6
"41
4
"43
D=2
Barrier Rail, Concrete."
maintaining markers in the price bid for "Temporary
units. Include costs for furnishing, installing and
promptly repair or replace any damaged or missing
adjacent edge line in color. Maintain the markers and
Markers to face oncoming traffic and match the
barrier in a manner approved by the manufacturer.
Furnish and install Barrier Markers. Attach to the
with Strap Anchorage.
2-loop barriers (previous designs) or in conjunction
Retainer bolt & nut are required for connections with
5
4
Per 12'-6" Barrier Section
Size
Bar
Bar Bars
of
No.
Shape
4a1
6 25.5
LOOP ASSEMBLY
26d3
6
6
2
2
REINFORCING A615 Gr. 60
Ft.
Length
8'-6"
35"
Lbs.
Weight
7'-7"
12'-2"
6'-0"
8'-5"
12'-2"
5
4 12
4 16.34c1
5b1 38.1
48.1
3
6d2
6d1
22.8
25.3
66a2
2
6 26.3
5
BA-401
REVISION
04-20-21
SHEET 2 of 4
REVISIONS:Changed Obstacle to Object..
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
(PRECAST CONCRETE)
TEMPORARY BARRIER RAIL
" core bit.85
Pre-drill holes for stakes with 1
3 stakes required per rail section.
" dia. x 5" min.).43
Titen HD Wedge Bolt (
" min.) OR Simpson 21
" dia. x 443
Large Diameter Tapcon (
" long ASTM A325 structural bolt OR Red Head 43
x 1
'' dia. 43
inch Red Head Multi-Set II drop-in anchor with 43
6
7
8
2"
See Table A
3"
3"
3"
Stop Plate
Traffic Side
3"
See Table A
8
8
36"
16" 16"
10"
2"
6
Bend Line (typ.)
20"
Edge of Dropoff
Tie-Down Strap
7
3"
Stake
Traffic Side
END VIEW
STAKE
" STOP PLATE21
TYPICAL SECTION
TABLE A
ANCHORAGE REQUIREMENTS
(after bending)
TIE-DOWN STRAP
(before bending)
TIE-DOWN STRAP
PCC Pavement
Bridge Decks
For use on:
PCC Pavement
Composite Pavement
HMA Pavement (2'' min. thickness)
For use on:
68°
68°
" dia.21
1
"21
38"21
1
"21
1
''41
Anchor (typ.)
Pin Assembly
Connection
" dia.87
"163
" dia.83
1"
163 "
163
" dia.87
"21
10
"21
2
"21
2
"21
103"2"
A36 Steel Plate
"41
" x 341
3" x
" inside rad.41
"83
" rad. to Inside41
A36 Steel Strap
'' x 36''41
3'' x
A36 Steel Plate
"41
" x 341
3" x
"21
1
Edge of Dropoff
or Fixed Vertical Object
or Fixed Vertical Object
Min. offset
where T
BR
is U
nanchore
d
Min. offset
where T
BR
is A
nchore
d
N/A
3"
3"
24"
24"
1''
6''
6''
N/A
6''
6''
Depth
Dro
poff
A dropoff is a slope of 2H:1V or steeper*
*Dropoffpavement
from
bridgefrom
Fixed vertical object
24''
45''
45''
24''
STRAP ANCHORAGE
STAKE ANCHORAGE
BA-401
REVISION
04-20-21
SHEET 3 of 4
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
(PRECAST CONCRETE)
TEMPORARY BARRIER RAIL
Object
12"
16"
33"
16"6d2
6d3
for stirrup assembly
2 at each size required
A
6d1
8"
5"
B
Plan
4v_ bars
Elevation
(Dimensions are out to out of bars unless otherwise noted.)
BENT BAR DETAILS
LC Bar
3" to
LC Bar
17" to
"43
"43
33
"21
34
"43
20
"43
17
"41
4
"43
D=2
invert for other end)(Connection to "Marked End" shown,
6d1, 6d2, 6d3
1 inch radius allowed.3
Per 12'-6" Barrier Taper Section
23"
26"
33"
30"
4
4
2
2
4
4v1
4v2
4
4
2
4.2
3.7
16.0
4.5
3.3
2
2 2.9
2.6
5f3
4f2 4
44v6
Size
BarBar Bars
of
No.
Shape
5
4v5
2
4v3
4v4
4
2
2
4f1
1
10.0
8'-6"
7'-7"
16
8'-5"
LOOP ASSEMBLY
7'-6"
3'-4"
12'-0"
11'-9"
3'-2"
ft.
Length
12.3
REINFORCING A615 Gr. 60
lbs.
Weight
6d1
1
1
12.86d3
6
12.6
6d2
6
11.4
20"
27"
17"
4v5
4v4
13"
4v6
Bar
1"10"4v1
B
4v3
4v2
A
"41
1
"85
1
"87
1
"83
2
"43
2
"21
24
17"32"
12"12"
18"18"18"18"
6d3
4d2
4v15f3
6d1
6d24v2
4v3
12"
PLAN
4v4
4v64v5
See Detail 'A'
5'-4"
6"
8"
6"
6"
12'-6"
Center of Gravity
2" V bar Spa.
4f13"
3"
LC
"43
4'-2
"21
22
" measured from face of rail to outside edge of loop bar.81
" ± 83
3
" chamfer43
Section A-A
the Contractor.
for details. Location to be determined by
Provide two lifting slots. See
Invert loop bars for other end.)
(For connection to "marked end" of barrier.
SIDE ELEVATION
TAPERED END SECTION
14"
32"
22"
TRAF
FIC
4f1
7"12'-6''
5f3
4f2
4f1
3
3
Spaces
2 Equal
3"
8"
5"
See chamfer detail
Possible Curb
8''
PERSPECTIVE VIEW
DETAIL 'A'
FRONT ELEVATION END SECTION
169°
" clear21
1
2" clear
"21
22
"41
2
2" min. clear
2" min. clear
BA-401
REVISION
04-20-21
SHEET 4 of 4
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
3
(PRECAST CONCRETE)
TEMPORARY BARRIER RAIL
108-30
Possible Tabulation:
Temporary Crash Cushion
Embankment In Place
Possible Contract Items:
108-30
6'-0''
35'-0''
EMBANKMENT DIMENSIONSBarrel Installation Line
35'-0''
3'-0''
1
5°Barrel Installation Line
1
10°
V
Width
Shoulder
EMBANKMENT PLAN
2:1 maximum
3:1 preferred,
Approach Traffic
X
Approach Traffic
10°
20:1
Edge of Pavement
Edge of Shoulder
Z
Y
of Embankment
Possible Toe
15°
4:1
W
max
X
Approach Traffic
Y
4
3
Required
Layouts
Barrel
Sand
2
1
3'-7" - 10'-7"
3'-6" or less
W Z
negative)
(must not be
26'-6"
25'-9"
17'-10" - 32'-3"
10'-8" - 17'-9"
25'-0"
24'-3"
Edge of Special Shaping
Angle of Barrel Installation Line is measured from a line parallel to roadway centerline.
BARREL INSTALLATION LINE LAYOUT
INFODESIGNER
2:1 max.
3:1 pref,
EMBANKMENT TYPICAL SECTION
Embankment
Toe of
120
Edge of Special Shaping
Edge of Shoulder
V + 3'-3"
V + 10'-0"
V + 17'-0"
V + 24'-0"
V + 5'-3"
V + 12'-3"
V + 19'-3"
V + 26'-3"
3.73 V + 12'-0"
3.73 V + 38'-0"
3.73 V + 64'-0"
3.73 V + 89'-0"
LOCATION STATION
BA-500
REVISION
04-20-21
SHEET 1 of 2
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
SAND BARREL
TEMPORARY CRASH CUSHIONS
OBJECT
Widths:
For Object
X
Y
dimension.
dimension equals to roadway centerline. In this case,
space is limited, Barrel Installation Line may be parallel
For object located within the traveled way where
Where distance to object is less than 15 feet from edge of traveled way:
Where distance to object is 15 feet or greater from edge of traveled way:
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0108-30.PDFhttp://www.iowadot.gov/design/dmanual/01e-06.pdf
SAND BARREL DELINEATION
MARKER PLATE
200200
200400
700
400
400
700
700
1400
1400
1400
1400
2100
2100
30" min.
30" min.
Leading Barrel
Leading Barrel
Approach Traffic
Approach Traffic
Opposing Traffic
18"
2"
2"
18"
SAND BARREL LAYOUT
centered on the barrel installation line.
Mount marker plate on the leading barrel,
2"
retroreflective sheeting
Type III or Type IV
plate sheeted with yellow
0.032 inch aluminum
6"
6"
6"
6"
(lbs)
Sand Weight
(36" nominal dia.)
Sand Barrel
30" min.
12"
Barrel Installation Line
Leading Barrel
" dia.167
4186.09
be substituted for the marker plate.
Self-adhesive sheeting meeting the above requirements may
for Type A signs.the requirements of Article
" bolts, nuts, and washers meeting 83
Mount plate using four
4186.09
BA-500
REVISION
04-20-21
SHEET 2 of 2
REVISIONS:Changed Obstacle to Object.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
SAND BARREL
TEMPORARY CRASH CUSHIONS
Edge of Object
OBJECT
PROTECTING OBJECT BETWEEN OPPOSING TRAFFIC PROTECTING WIDE OBJECT
All barrels separated by 6 inches.
to the one shown, will be measured as a single crash cushion.
An installation consisting of multiple sand barrel layouts, similar
For wide object, repeat sand barrel layout as needed
OBJECT
OBJECT
opposing traffic
beyond edge of object for
Ensure barrels do not extend
http://www.iowadot.gov/erl/current/GS/content/4186.pdf
SECTION
Bridge Approach BRNO. DATE TITLE
BR-101 04-21-15 Bridge Approach Section (General Details)BR-102 10-17-17 Bridge Approach Section (Two-Lane, Abutting PCC Pavement)BR-103 10-17-17 Bridge Approach Section (Two-Lane for Bridge Reconstruction, PCC Pavement)BR-104 10-17-17 Bridge Approach Section (at Existing Bridges, PCC Pavement)BR-105 04-21-15 Bridge Approach Section (Two-Lane, HMA Pavement)BR-106 04-21-15 Bridge Approach Section (Two-Lane for Bridge Reconstruction, HMA Pavement)BR-107 04-21-15 Bridge Approach Section (at Existing Bridges, HMA Pavement)BR-111 04-21-15 PCC Overlay of Reinforced Bridge Approach SectionBR-112 10-17-17 Bridge Approach Details (in Conjunction with Bridge Deck Overlay)BR-121 04-21-15 Bridge Approach Details (Secondary Roads)BR-201 10-17-17 Double Reinforced 10" ApproachBR-202 10-17-17 Double Reinforced 10" Approach with Variable Depth Paving NotchBR-203 10-17-17 Double Reinforced 12" ApproachBR-204 10-17-17 Double Reinforced 12" Approach with Variable Depth Paving NotchBR-205 04-20-21 Double Reinforced 12" Approach (Slab Bridge)BR-211 10-17-17 Bridge Approach (Abutting PCC or Composite Pavement)BR-212 04-21-15 Bridge Approach (Abutting HMA Pavement)BR-213 04-21-15 Bridge Approach (Abutting Pavement)BR-231 10-17-17 Bridge Approach (Multi-Lane, Curbed Roadway)BR-241 04-18-17 Double Reinforced 10" Approach On Gravel Roads
4/20/21
CL
(See Project Typical Drawings)
Design Shoulder
Single Reinforced Section
Non-Reinforced Section
PLAN VIEW
(Polyethylene, Corrugated Tubing)
4" Perforated Subdrain
(See Project Typical Drawings)
Design Shoulder
10' Max.
5' Min.
'DW' or 'R
T'
'EF'
X
'KT-2' or 'L-2'Floor
Bridge
'EF'
'KT-2' or 'L-2'
'DW' or 'R
T'
5' Min.
10' Max.
Joint
Contraction
Possible
Pavement
P.C.C. or Composite
X
B
A
1
B
1
A
'CD'
'CD'
Approach Roadway
8
7
6
5
1
2
3
4
PV-101
PV-101
include the following areas:
Pay limits for contract item
Double Reinforced Section
Sleeper Beam Section
SECTION A-A
2
SECTION B-B
2
2
2
2
3
3
4
4
5
6
6
7
7
9
9
'CF-3'
'CF-3'
8
8
9
PV-101
See Detail 'C'.
inch Preformed Joint Filler and seal top.41
otherwise.
Place 'RD' Joint where PCC shoulder. Place 'B' joint
the outside edge of pavement.
Place an "X" in the plastic concrete near the 'EF' joint at
Slope subdrain to drain.
2 feet outside of pavement edge.
Polymer Grid and excavation limits of Modified Subbase
Extend 'CD' and 'EF' joints where PCC Shoulder.
Section).
Use 'KS-2' joint (Double Reinforced
Section).
Two Pours - Use 'KS-1' joint (Single Reinforced
Single Pour - Saw cut joint per Detail B .
):Longitudinal Joint (
Sections.
Build 4 inch Sloped Curb to end of Reinforced
See Detail 'F'
See Detail 'F'
APPROACH PAVEMENT LAYOUT AT A SKEW
112-6
Possible Tabulation:
Bridge Approach, BR-205
Possible Contract Item:
INFODESIGNER
See DR-306 for outlet details
PV-101
in the double reinforced section quantities.
6'-3" portion under the approach pavement have been included
Quantities for both the 1'-9" top part of the sleeper slab and the
Use epoxy coated bars for all reinforcement.
All transverse bars are #5.
For curb details, see Detail 'G'.
.For joint details, see
24''
Detail 'G'
Curb per Normal Pavement Slope
LC
Polymer Grid
Excavation Limits
6"
Earth
Modified Subbase
24''
Polymer Grid
Excavation Limits
Design Shoulder
Modified Subbase
Approach Roadway
15'-0" min.
Deck
Bridge
20'-0" min.
Skew Angle
Pavement
Roadway
Section (typ.)
Bridge Rail End
Reinforced Bridge Approach Section
Design Shoulder Width
Design Shoulder Width BR-205
REVISION
04-20-21
SHEET 1 of 4
REVISIONS:Modified #4 Bars at 12" Centers to #5 Bars.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
(SLAB BRIDGE)
DOUBLE REINFORCED 12'' APPROACH
http://www.iowadot.gov/design/SRP/IndividualStandards/epv101.pdfhttp://www.iowadot.gov/design/SRP/IndividualStandards/epv101.pdfhttp://www.iowadot.gov/design/dmanual/01e-06.pdf
10
11
12
10
3"
16"
-
" Max. Lap21
4
4" Min. Lap
DETAIL 'B'
3"9"
(Slab Edge Details for CF Joint with Curb)
END VIEW
(Slab Bridge)
DETAIL 'A'
(Slab Edge Details for CF Joint with Curb)
PARTIAL PLAN VIEW
BENT BAR SHAPES
15
13
16
14
Full Length of Paving Notch
Resilent Joint Filler Placed
" Thick and 16" Wide 43
15
Notch through drilled holes
Full Length of Paving
Place at 32" + Spacing
" dia. X 2' Steel Rod.21
" Preformed Joint Filler and Seal Top41
DETAIL 'C'
12
11
11 11
11
11
13
16
14
16
Paper full length.
Debond Paving Notch with 2 layers of 30# Asphaltic Felt
length of Sleeper Slab.
inch thick x 16 inch wide Resilient Joint Filler for full43
Space at 32" + for full length of Sleeper Slab.
Space at 24 inches O.C.
inch bottom end clearance.21
#8 dowels 1'-6" long with 2
skewed face.
If bridge is skewed, place additional #5 bar parallel to
#8 Bars - 48"
#6 Bars - 27"
Minimum lap length: #5 Bars - 18"
2" min. to 2 1/2" max. clear to bent bar.
15
9"
6"
Single Reinforced Section (20'-0")
24''
#5 Bars At 12" max. Centers
Double Reinforced Section (20'-0" min.)
#5 Bars At 12" max. Centers
#4 Bars at 12" Centers" CL.
21
2
" CL.21
2
Steel Rod
Resilient Joint Filler
5"
6"
#6 Bars At 12" Centers
Approach Pavement 12" Approach Pavement
6" 3" 6"
Modified Subbase
Polymer Grid
6"
3"
Non-Reinforced Section
'CD' Joint
Approach Pavement
" CL.21
2
#5 Bars At 12" Centers
12"
'E' Joint
See Detail 'B'
Sleeper Slab
1'-9"
CF Joint
" x 6" Studs43
12"
"83
to Allow Plate Travel
" Recess in Curb 83
" Joint Filler41
Preformed CF Joint
3"
Single Reinforced SectionDouble Reinforced Section
6"
6"
Single Reinforced SectionDouble Reinforced Section
" Joint Filler41
Preformed
" x 6" Studs43
" x 2' Galvanized End Plate41
1'-6" x
" x 2' Galvanized End Plate41
1'-6" x
1'-5"
4 Mil Polyethylene Sheeting
1'-9"
#5 Bars At 12" CentersSleeper Slab
2 Equal Spaces 2 Equal Spaces
1'-9"2'-3" 2'-3"
'CF-3' Joint
" CL.21
2
" CL.21
2
" CL.21
2
12"
min.
" CL21
2
or #4 Rebar
Steel Rod
" dia. x 24"21
20"
D=2"
33"
7"
7"
5'-10"
"21
D=2
(Sleeper Slab)
12" Centers
#5 Bars at
(Approach Pavement)
#4 Bars at 12" Centers
(Sleeper Slab)
#5 Bars at 12" Centers
1'-4"
1'-7"
"21
D=2
6"
6"
Steel Rod
Bond Breaking Coating
Resilient Joint Filler
#8 Bars at 9" Centers
13" 13"
Do not bend.
to be Placed with Bridge.
Stainless Steel Dowel
Approach Pavement
" Preformed Joint Filler and Seal Top41
6"
min.
13"
(Typ)
#5 Bars
Paving Notch
13"
Paving Notch
"41
2'-
Sleeper Slab
1'-9"
"21
D=2
BR-205
REVISION
04-20-21
SHEET 2 of 4
REVISIONS:Modified #4 Bars at 12" Centers to #5 Bars.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
(SLAB BRIDGE)
DOUBLE REINFORCED 12'' APPROACH
SECTION THRU CENTERLINE
SECTION THRU CENTERLINE
4" SUBDRAIN LOCATION
(Abutting PCC or Composite Pavement)
(Doweled PCC Pavement)
(Abutting HMA Pavement)
17
17
17
BR-213BR-213.to
If abutting pavement (PCC or HMA) is not in place, refer
DETAIL 'D'
DETAIL 'E'
24"
24"
10'-0"
10'-0"
12" min.
20'-0" 20'-0"As required by skew angle (20'-0" min.)
As required by skew angle (20'-0" min.) 20'-0" 20'-0"
Grid
Polymer
Subbase
Modified
Subdrain
4" Perforated
Backfill
Porous
Bridge Floor
Detail 'A'
See
'EF' Joint'CD' Joint
Non-Reinforced SectionsSingle Reinforced SectionDouble Reinforced Section
Pay Limits for Contract Item
'DW' or 'RT' Joint
Composite Pavement
Abutting PCC or
Subbase (if applicable)See Detail 'D'Polymer Grid
Modified Subbase
Granular Backfill line
Excavate to existing
placed with bridge
and Subdrain
Backfill
'EF' Joint
12"
Modified Subbase
Polymer Grid
4" Perforated Subdrain
10"
(if applicable)
Subbase
'DW' or 'RT' Joint
Composite Pavement
Abutting PCC or
3"
3"3"
'CD' Joint
Pay Limits for Contract Item
Double Reinforced Section Single Reinforced Section Non-Reinforced Section
Modified SubbaseSee Detail 'E'
Polymer Grid
Granular Backfill line
Excavate to existing
Bridge Floor
Detail 'A'
See
placed with bridge
and Subdrain
Backfill
'B' Joint
HMA Pavement
Abutting
Subbase (if applicable)
'B' JointBridge Approach
Section
Subbase
(if applicable)Modified Subbase
12"
Polymer Grid
'CF-3' Joint
'CF-3' Joint
1'-9"
1'-9"
4 Mil Polyethylene Sheeting
4 Mil Polyethylene Sheeting
Sleeper Slab
Sleeper Slab
Abutting HMA Pavement
BR-205
REVISION
04-20-21
SHEET 3 of 4
REVISIONS:Modified #4 Bars at 12" Centers to #5 Bars.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
(SLAB BRIDGE)
DOUBLE REINFORCED 12'' APPROACH
http://www.iowadot.gov/design/SRP/IndividualStandards/ebr213.pdf
DETAIL 'G'
(Joint Placement)
(Back of Curb Placement)
DETAIL 'F'
DETAIL 'H'
8"
4"
1"
2"7"
Detail 'G'
Curb per
Detail 'G'
Curb per
9"
Gutter Line
See Detail 'H'
Floor
Bridge
End Section
Bridge Rail
End Section
Bridge Rail
Joint Filler and seal top
" Preformed41
Provide
Joint Filler and seal top
" Preformed41
Provide
BR-205
REVISION
04-20-21
SHEET 4 of 4
REVISIONS:Modified #4 Bars at 12" Centers to #5 Bars.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
6
(SLAB BRIDGE)
DOUBLE REINFORCED 12'' APPROACH
SECTION
Erosion Control ECNO. DATE TITLE
EC-101 04-19-16 Wood Excelsior Mat for Ditch ProtectionEC-102 04-21-15 Sod for Ditch ProtectionEC-103 04-21-15 Wood Excelsior Mat for Slope ProtectionEC-104 04-17-18 Turf Reinforced Mat (TRM)EC-105 04-17-18 Transition Mat
EC-201 04-20-21 Silt FenceEC-202 10-21-14 Floating Silt CurtainEC-204 04-20-21 Perimeter, Slope and Ditch Check Sediment Control Devices
EC-301 10-18-16 Rock Erosion Control (REC)EC-302 10-16-18 Rock Check DamEC-303 10-20-20 Stabilized Construction Entrance
EC-501 04-21-15 Trees and ShrubsEC-502 04-21-15 Seeding in Rural Areas
EC-601 10-16-18 Temporary Sediment Control BasinEC-602 04-21-20 Open-Throat Curb Intake Sediment Filter
4/20/21
100-18
100-17
2
A
Silt Fence
Flow
A
2
1
Flow
Contour Lines
3
Flow
2
Silt Fence
Fabric
Engineering
Fabric
Engineering
Post 4'-0" min.
'T' Steel Fence
Fabric
Engineering
required on slope.
to the ground contour when
Install Silt Fence parallel
Post 4'-0" min.
'T' Steel Fence
ROW
Existing or Proposed Right of Way
2
Flow
Flow
B
Typical Installation
Toe of Foreslope
Flow
Flow B
SECTION B-B
FRONT VIEW
SECTION A-A
SILT FENCE - MACHINE AND MANUAL INSTALLATION
1 1
Ground Line
3
PLAN FOR SILT FENCE
10' min.
8' max. Post Spacing
Possible Tabulations:
Silt Fence for Ditch Checks
Silt Fence
Possible Contract Items:
100-18
100-17
(Manual Installation)
Bottom of Trench
19'' min.
1111
INFODESIGNER
Belt
Steel Post
Fabric
ATTACHMENT TO POST
BACK VIEW
From Ground
Approx 4"
or Cable Tie
Tie Bottom Wire
(evenly spaced)
Cable Ties
Wire or
Steel Post
Belt
Fabric
ATTACHMENT TO POST
PROFILE VIEW
13
14
13
14
(manual installation)
4'' x 10'' trench
(manual installation)
4'' x 10'' trench
EC-201
REVISION
6 04-20-21
SHEET 1 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
pneumatic tamper.
For manual installation, compact with a mechanical or
of silt fence at least two times with a rubber-tired vehicle.
For machine installation, compact by driving over each side
installation.
(trench) installation if phyical conditions prohibit machine
Install all silt fence using a silt fence machine. Use manual
10" min.
13
4" Offset
to contain runoff as shown.
flare up the slope on both ends 20 feet of the segment
200 feet. For every segment of silt fence that is placed,
Place silt fence continuously up to a maximum length of
as shown.
hump that extends 20 feet up the slope to contain runoff
- Place silt fence continuously. Every 200 feet, place a
contain runoff as shown, or
up the slope on both ends 20 feet of the segment to
feet. For every 200 foot segment of fence placed, flare
- Place silt fence continuously up to a maximum of 200
The contractor has two installation options:
Refer to Tab. 100-17
Embed all posts 28 inches below the ground line.
along bottom of trench.
For manual installation only, fold engineering fabric
encompassing the belt. See attachment to post.
cable ties (50 lb.) or wire passing through or
Secure top of engineering fabric to steel posts using
4" Offset
(evenly spaced)
Cable Ties
Wire or
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0100-18.PDFhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0100-17.PDFhttp://www.iowadot.gov/design/dmanual/01e-06.pdf
Flow FlowDitch
Silt Fence Ditch Check
Foreslope
Flow Flow
Backslope
Fabric
Engineering
3
1
2
3
SECTION C-C
C C
SECTION C-C
Trench
4" x 12"
DITCH CHECK - MACHINE INSTALLATION DITCH CHECK - MANUAL INSTALLATION
FRONT VIEW
Flow
Fabric
Engineering
2
Flow
4
4' max. Post Spacing
Post 4' min.
'T' Steel Fence Post 4' min.
'T' Steel Fence
5
5
Backslo
pe
6
1
4
(Manual Installation)
Bottom of Trench
19" min.
6
12
PLAN FOR DITCH CHECK (TYPE 1)12
LOCATION STATION
Foreslope
19" min.
Refer to Tab. 100-18
Minimum end span (in feet) = 2 X Backslope (H:V).
Minimum end span (in feet) = 2 X Foreslope (H:V).
and space remaining posts equally.
Locate posts at toe of foreslope and toe of backslope
Embed all posts 28 inches below the ground line.
along bottom of trench.
For manual installation only, fold engineering fabric
encompassing the belt. See attachment to post.
cable ties (50 lb.) or wire passing through or
Secure top of engineering fabric to steel posts using
EC-201
REVISION
6 04-20-21
SHEET 2 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
10" min.
4" Offset 4" Offset
Ditch
Foreslope
Flow
Backslope
C C
Silt Fence
Inlet
Silt FenceA
A
Flow
FlowFlow
Flow
Intake
Contour Lines
LOCATION STATION
PLAN FOR SILT FENCE AT INTAKE (TYPE 2)
Refer to Tab. 100-1812
LOCATION STATION
PLAN FOR SILT FENCE DITCH CHECK AT INLET (TYPE 3)
12
12
EC-201
REVISION
6 04-20-21
SHEET 3 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
FRONT VIEW
4' max. Post Spacing
5 8
1
4
19" min.
19" min.
3Bottom of Trench
PLAN FOR SILT DITCH (SHALLOW DITCH SECTION-TYPE 4)12
Backslop
e
Ditch FlowA A
Foreslope
Backslope
Silt Fence Ditch Check
FlowFlow
6'
6'
6'
6'
See Detail 'A'
Detail 'A'
Foreslope
ROW Line
LOCATION STATION
1
4
5
8
12
3
Refer to Tab. 100-18
back slope intercept and the other beyone the intercept.
transverse to parallel installation. Place one post at the
Place posts shown in Detail 'A' to transition from
Minimum end span (in feet) = 2 X Foreslope (H:V).
and space remaining posts equally.
Locate posts at toe of foreslope and toe of backslope
Embed all posts 28 inches below the ground line.
encompassing the belt. See attachment to post..
cable ties (50 lb.) or wire passing through or
Secure top of engineering fabric to steel posts using
EC-201
REVISION
6 04-20-21
SHEET 4 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
Perimeter Silt Fence (see EC-201 page 1)
10" min.
3
4' max. Post Spacing
5 97
Bottom of Trench
FRONT VIEW
19" min.
1
PLAN FOR SILT FENCE (NO DITCH SECTION-TYPE 5)12
19" min.
Flow
Flow
A AFlow Flow
Silt Fence Ditch Check
Flow Flow
6'
6'
6'6'
Detail 'B'
See Detail 'B'
Flow
Foreslope
ROW Line
LOCATION STATION
1
5
7
9
12
3
Silt Fence
Refer to Tab. 100-18
intercept of the foreslope.
the installation should approximately parallel the
transverse to parallel installation. The parallel portion of
Place posts as shown in Detail 'B' to transition from
spacing
Locate posts at toe of foreslope. Locate posts at 4 foot
Minimum end span (in feet) = 2 X Foreslope (H:V).
Embed all posts 28 inches below the ground line.
encompassing the belt. See attachment to post..
cable ties (50 lb.) or wire passing through or
Secure top of engineering fabric to steel posts using
EC-201
REVISION
6 04-20-21
SHEET 5 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
Perimeter Silt Fence (see EC-201 page 1)
10" min.
LAUNCHING PIT
RECEIVING PIT
Excavated Material
Silt Fence
15' min
15' min
Boring, Jacking, or Tunneling
11 Refer to Tab. 100-17
11
11
Silt Fence
PLAN FOR SILT FENCE FOR TRENCHLESS CONSTRUCTION
Excavated Material
EC-201
REVISION
6 04-20-21
SHEET 6 of 6
REVISIONS:Modified trench to 10". Added circle notes 13 & 14.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
SILT FENCE
PERIMETER CONTROL
Contour Lines
2
1
LEGEND
Flow
3
INLET PERIMETER PROTECTION
PERIMETER CONTROL ALONG CURB
Wood Stake
(Overlap Joint)
DETAIL 'A'
3
Perimeter and Slope Sediment Control Device
INLET
3
45 typ.
Right of Way or Protected Area
3
3
Perimeter and Slope Sediment Control Device
1
See Detail 'A' (Typ.)
See Detail 'A' (Typ.)
See Detail 'A' (Typ.)
12" min.
2' min.
(measured along device)
Installation Length
DETAIL 'B'
See Detail 'A' (Typ.)
Control Device
Slope Sediment
Perimeter and
incidental to Perimeter and Slope Sediment Control Device.
and compacting rills and gullies, and minor ground shaping, is
Control Device. Minor ground shaping may be required. Filling
continuous contact with Perimeter and Slope Sediment
Ensure ground surface is smooth in order to provide
placing Perimeter and Slope Sediment Control Device.
Fill and compact rills and gullies (see Detail 'B') prior to
Not intended for use in perennial or intermittent streams.
Sediment Control Device
Perimeter and Slope
Perimeter and Slope Sediment Control Device.
Fill and compact rills and gullies prior to placing
2
3
INFODESIGNER
12" min.
7
8 Install staples every 2 feet on upslope side.
ground.
All stakes to be placed at approximatly 45 degree angle to
minimum actual stake size 3/4" x 3/4" wood stakes.
Upslope stakes spaced at ends and middle of device. Use
Install downslope stakes at 4 foot maximum spacing.
included in the installation length.
Extra material required to install overlaps will not be
installation length.
along the device. Run-ups will be included in the
run-ups and/or means may be required to reduce erosion
such that runoff is conveyed along the device, additional
each run up the slope to help contain runoff. When placed
Overlap joints per Detail 'A'. Turn the lower 10 feet of
EC-204
REVISION
04-20-21
SHEET 1 of 3
REVISIONS:Modified circle note 3 and 5, title and stake placement.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
5
SEDIMENT CONTROL DEVICES
PERIMETER, SLOPE AND DITCH CHECK
7
8
100-19
Possible Tabulation:
Ditch Check Sediment Control Device
Perimeter and Slope Sediment Control Device
Possible Contract Item:
http://www.iowadot.gov/design/dmanual/01e-06.pdf
SLOPE PROTECTION
3
4
4
30 typ.
A
A
3
3
3
(measured along device)
Installation Length
Top of Slope or Undisturbed Area
Sediment Control Device
Perimeter and Slope
Sediment Control Device
Perimeter and Slope Filler Material
SECTION A-A
Installation
(Typ.)See Detail 'A'
(Typ.)See Detail 'A'
(Typ.)See Detail 'A'
12" min.
Contour Lines
LEGEND
Flow
3
Wood Stake
4
12" min.
EC-204
REVISION
04-20-21
SHEET 2 of 3
REVISIONS:Modified circle note 3 and 5, title and stake placement.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
5
SEDIMENT CONTROL DEVICES
PERIMETER, SLOPE AND DITCH CHECK
Install staples every 2 feet on upslope side.
length.
runaround. Run-ups will be included in the installation
feet of each device up the slope to prevent flow
contours). Overlap joints per Detail 'A'. Run the last 10
Install Slope Protection perpendicular to slope (parallel to
staples every 2 feet on upslope side.
minimum actual stake size 3/4" x 3/4" wood stakes. Install
Upslope stakes spaced at ends and middle of device. Use
Install downslope stakes at 4 foot maximum spacing.
8
3
8
DITCH PROTECTION
Foreslope
Ditch
Backslope
5
5
Sediment Control Device
Perimeter and Slope
Sediment Control Device
Perimeter and Slope5
12" min.
INSTALLATION IN DITCH
(measured along device)
Installation Length
Contour Lines
LEGEND
Flow
5
Wood Stake
6
6
12" min.
EC-204
REVISION
04-20-21
SHEET 3 of 3
REVISIONS:Modified circle note 3 and 5, title and stake placement.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
5
SEDIMENT CONTROL DEVICES
PERIMETER, SLOPE AND DITCH CHECK
Install staples every 1 foot on upslope side.
joints per Detail 'A'.
Install Ditch Protection perpendicular to ditch. Overlap
minimum actual stake size 3/4" x 3/4" wood stakes.
Upslope stakes spaced at ends and middle of device. Use
Install downslope stakes at 2 foot maximum spacing.
9
9
SECTION
Earthwork EWNO. DATE TITLE
Embankments
EW-101 10-17-17 Embankment and Rebuilding EmbankmentsEW-102 10-20-15 Allowable Placement of Unsuitable Soil in EmbankmentsEW-103 10-20-15 Embankment Subgrade Treatment, Moisture Density Control and Special CompactionEW-105 04-21-15 Reshaping Slopes and DitchesEW-110 10-20-15 Ditch Blocks and Dikes
Grading at Bridges
EW-201 04-19-16 Bridge Berm Grading without Recoverable Slope (Barnroof Section)EW-202 04-19-16 Bridge Berm Grading without Recoverable Slope (Non-Barnroof Section)EW-203 10-20-20 Bridge Berm Grading with Recoverable Slope (Non-Barnroof Section)EW-204 10-20-20 Bridge Berm Grading with Recoverable Slope (Barnroof Section)EW-210 10-20-15 Standard Wing DikesEW-211 10-17-17 Special Grading at Side PiersEW-212 10-20-15 Settlement Plate
Grading for Guardrail
EW-301 04-20-21 Guardrail GradingEW-302 10-20-15 Special Shaping for High Tension Cable Guardrail at Median Obstacles
Erosion Control
EW-401 10-20-15 Temporary Stream Crossing, Causeway, or Equipment PadEW-402 04-18-17 Temporary Stream DiversionEW-403 04-18-17 Temporary Erosion Control Measures
Entrances, Sideroads, and Safety Ramps
EW-501 10-20-15 Rural EntranceEW-502 04-18-17 Safety RampEW-503 10-20-15 Side Road Grading
4-20-21
20'
TRAFFIC
X
Y
Possible Tabulation:
107-23107-23
Earth Fill
PLAN
Installation Line
Y4 Z
19
20
17
18
50
61
65
54
5710
11
8
9
12
15
16
13
14
47
6
feet
7
43
5 39
76
80
69
72
83
95
feet
87
91
Normal Shoulder
Edge of
7156
Guardrail may or may not be attached to face of obstacle.
.Typical
Construct paved shoulder in front of guardrail as shown on
construction of embankments.
Construct earth fill in conformance with requirements for
7156
SECTION A-A SECTION B-B
GUARDRAIL INSTALLATION LINE AT OR WITHIN 10 FEET OF SHOULDER
Edge of Shoulder
Distance from edge of normal shoulder to toe of 10:1 slope
Measured from Location Station.
LEGEND
Slope - 10:1
Foreslope at Guardrail
Foreslope
Y1
10
5' min.
Guardrail
Foreslope at
1
Foreslope
B
X2
X1
Obstacle
A
X4
X3
B
Z
LOCATION STATION
Slope Transition
25' Constant
A
15°Y4
5' min.
Normal Shoulder
Edge of
10
Y4
Earth Fill
Guardrail
Foreslope at
1
1
1 Match slope of adjacent shoulder.
Match adjacent shoulder.
EW-301
REVISION
10-20-15
SHEET 1 of 5
REVISIONS:adjacent shoulder. Added note 3 on Sheet 4.Changed slope in front of guardrail from a 10 to 1 to match the slope of the
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
1
GUARDRAIL GRADING
Y1Y3Y2
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0107-23.PDFhttp://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e7156.PDF
5' min. 5' min.
PLAN
Y4 Z
19
20
17
18
50
61
65
54
5710
11
8
9
12
15
16
13
14
47
6
feet
7
43
5 39
76
80
69
72
83
95
feet
87
91
X
YNormal Shoulder
Edge of
Normal Shoulder
Edge of
SECTION C-C SECTION D-D
10
Y4
GUARDRAIL INSTALLATION LINE WITHIN SHOULDER
Earth Fill Earth Fill
slope
Distance from edge of normal shoulder to toe of 10:1
Measured from Location Station.
Guardrail
Foreslope at
110
Y1
Guardrail
Foreslope at
1
1
1 Match slope of adjacent shoulder.
LEGEND
Slope - 10:1
Foreslope at Guardrail
Match adjacent shoulder.
EW-301
REVISION
10-20-15
SHEET 2 of 5
REVISIONS:adjacent shoulder. Added note 3 on Sheet 4.Changed slope in front of guardrail from a 10 to 1 to match the slope of the
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
1
GUARDRAIL GRADING
20'
TRAFFIC
Edge of Shoulder
Foreslope Foreslope
B
X2
X1
Obstacle
A
X4
X3
B
Z
LOCATION STATION
Slope Transition
25' Constant
A
15°
Installation Line
Y3Y2
Y1
Y4
PLAN
Y4 Z
19
20
17
18
50
61
65
54
5710
11
8
9
12
15
16
13
14
47
6
feet
7
43
5 39
76
80
69
72
83
95
feet
87
91
10' min.
X
Y
Normal Shoulder
Edge of
GUARDRAIL INSTALLATION LINE BEYOND 10 FEET FROM SHOULDER
Earth Fill
slope
Distance from edge of normal shoulder to toe of 10:1
Measured from Location Station.
5' min.
Y4
Guardrail
Foreslope at
10
Typical Section
1
Match slope of adjacent shoulder.1
1
LEGEND
Slope - 10:1
Foreslope at Guardrail
Match adjacent shoulder.
EW-301
REVISION
10-20-15
SHEET 3 of 5
REVISIONS:adjacent shoulder. Added note 3 on Sheet 4.Changed slope in front of guardrail from a 10 to 1 to match the slope of the
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
1
GUARDRAIL GRADING
20'
TRAFFIC
Installation LineEdge of Shoulder
Foreslope Foreslope
B
X2
X1
Obstacle
A
X4
X3
B
Z
LOCATION STATION
Slope Transition
25' Constant
A
15°Y4Y3Y2Y1
http://www.iowadot.gov/design/tnt/PDFsandWebFiles/IndividualPDFs/e0107-23.PDF
Earth Fill
SECTION E-E
4' min.
Installation Line
Proposed Culvert
20'
FILL OVER PIPE CULVERT
PLAN
2
2
LEGEND
Slope - 10:1
Slope - 8:1
E
E
15°
8:1 8:1
3
10:1 preferred; no steeper than 6:1.
See sheets 1, 2, or 3 for unshaded areas.
3
EW-301
REVISION
04-20-21
SHEET 4 of 5
REVISIONS:Changes Obstable to Object. Modified guardrail.
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
2
GUARDRAIL GRADING
http://www.iowadot.gov/design/stdrdpln.htmThis image can be viewed in 3D on the the ERL or at our website http://www.iowadot.gov/design/stdrdpln.htm
http://www.iowadot.gov/design/stdrdpln.htmThis image can be viewed in 3D on the the ERL or at our website http://www.iowadot.gov/design/stdrdpln.htm
EW-301
REVISION
10-20-15
SHEET 5 of 5
REVISIONS:adjacent shoulder. Added note 3 on Sheet 4.Changed slope in front of guardrail from a 10 to 1 to match the slope of the
APPROVED BY DESIGN METHODS ENGINEER
STANDARD ROAD PLAN
1
GUARDRAIL GRADING
http://www.iowadot.gov/design/stdrdpln.htmhttp://www.iowadot.gov/design/stdrdpln.htm
SECTION
Lighting LINO. DATE TITLE
LI-101 10-21-14 Light Pole LocationLI-103 04-20-21 Conduit and Precast HandholesLI-104 10-21-14 Junction box (cast Iron)LI-110 04-19-16 Lighting TowerLI-120 10-21-14 Underdeck LightingLI-130 10-17-17 Temporary Floodlighting LuminairesLI-141 10-21-14 Electrical Installation (Roadway Ducts)LI-142 04-21-15 Electrical Installation (Bases)LI-151 10-21-14 Control Cabinet (Pole-Mounted)LI-152 10-21-14 Control Cabinet (Pad-Mounted)
LI-201 04-18-17 Light Pole FoundationLI-210 10-21-14 Transformer Base (Cast Aluminum)LI-211 10-20-15 Slip-Base for Light Poles
4-20-21
SH
EE
T 1 O
F 2
FIG
UR
E 8
010.1
03
LI-103
REVISION
04-20-21
SHEET 1 of 2
REVISIONS:Added the HDPE handhole to the precast concrete and composite ones.
1
CONDUIT AND PRECAST HANDHOLES
STANDARD PLANROADFIGURE 8010.103
SUDAS DIRECTOR DESIGN METHODS ENGINEER
LOGO
2'-0" min.
2'-0" min.
Finished Pavement Grade
1" to 3"
2'-0" dia.
walls of handhole.
base 6" beyond
Extend 8" granular
(4) Required
Cable Hooks
1"
1"
2'-0" min. diameter
Finished Pavement Grade Composite Lid
HDPE Frame
PRECAST CONCRETE HANDHOLE (TYPE I)HDPE HANDHOLE (TYPE V)
..
.
.
.
.
.....
........
.....
...... .......
..........
LOGO
..
.
.
.
.
.....
........
.....
...... .......
..........
LOGO
LOGO
Conduit
D
L
W
L
W
III
IV
30" 17" 24"
(NOMINAL)HANDHOLE DIMENSIONS TABLE
TYPE
36"
48"
24"
30"
30"
36"
L W D
II
LI-103
REVISION
04-20-21
SHEET 2 of 2
REVISIONS:Added the HDPE handhole to the precast concrete and composite ones.
1
CONDUIT AND PRECAST HANDHOLES
STANDARD PLANROADFIGURE 8010.103
SUDAS DIRECTOR DESIGN METHODS ENGINEER
SH
EE
T 2 O
F 2
FIG
UR
E 8
010.1
03
PRECAST CONCRETE COMPOSITE HANDHOLE
CONDUIT IN TRENCH
Steel Bolt
Stainless
Surface
Skid Resistant
Pull Slot
(Type II or III)
One Piece Lid
Steel Bolt
Stainless
(Type IV)
Two Piece Lid Surface
Skid Resistant
Pull Slot
(4) Required
Cable Hooks
Trench
4" min.
Conduit D
epth
24"
min. to 4
8"
max.
rubble.
concrete, or other
is free of cinders,
Ensure backfill material
Compact Backfill Material
walls of handhole.
base 8" beyond
Extend granular
SECTION
Local Systems LSNO. DATE TITLE
LS-625 04-19-16 Steel Beam Guardrail Tangent End Terminal (NCHRP 350 TL-3)LS-626 04-19-16 Steel Beam Guardrail Flared End Terminal (NCHRP 350 TL-3)LS-630 04-20-21 Steel Beam Guardrail Installation At Concrete Barrier Or Bridge Rail End Section (NCHRP 350 TL-3)LS-631 04-19-16 Steel Beam Guardrail Installation At Side Obstacle (Two-Way Protection)LS-632 04-19-16 Steel Beam Guardrail Installation At Side Obstacle (One-Way Protection)LS-633 04-19-16 Steel Beam Guardrail Installation At Railroad SignalLS-635 04-20-21 Steel Beam Guardrail Installation At Concrete Barrier Or Bridge Rail End Section (MASH TL-2)
4/20/21
NEAREST TRAFFIC 2
1
3
LAPPING PROCEDURE
12'-6''
1'-3''
VARIABLE FLARE
4
EW-301
BA-200
EW-301
SI-211
.For general guardrail details, see
.For grading requirements, see
.Install delineators and object markers according to
BA-200
SI-211
BA-201
BA-202
LS-625
LS-626Rail Elements
or Bridge Rail
Concrete Barrier
Rail Elements
INFODESIGNER
LOCATION STATION Connection
Bolted
VT1
Rail Splice
(37'-6'')
Transition Section
Steel Beam Guardrail Barrier
1
2
Rail Splice
Face of Guardrail
ETVT2
VF
Installation Line
4
3
Rail Splice
(varies)Steel Be
am Guardrail
Pay length for:
(Multiple of 6'-3")
Variable Tangent
(Multiple of 6'-3")
Variable Flare
Variable Tangent
5
5
")21
(40'-7
for Cable ConnectionSteel Beam Guardrail F
lared End Terminalor
")21
(53'-1Steel Beam Guardrail T
angent End Terminal
(50' for Tangent, 37'-6" for Flared)
End Terminal
LS-626
LS-625
BA-202
BA-201
" if VF is used.21
of 53'-1
" if VF is not used. Minimum VT1 21
Minimum VT1 of 40'-7
.See
.See
bridge rail end sections.
for connections to concrete barriers and See
.See
108-8A
Possible Tabulation:
Steel Beam Guardrail Tangent End Terminal, LS-625
Steel Beam Guardrail Flared End Terminal, LS-626
Steel Beam Guardrail End Anchor, Bolted
Steel Beam Guardrail Barrier Transition Section, BA-201
Steel Beam Guardrail
Possible Contract Items:
108-8A
LS-630
REVISION
10-18-16
SHEET 1 of 1
REVISIONS:
Section contract item to specify BA-201.Added N
Recommended