NRA EIRSPAN Printed Page MO-N59-013.00 Tawnaghmore Bridge ... · MO-N59-013.00 Tawnaghmore Bridge Maintaining Agent: 23 MO ... Struct. reg. no..: ... instances of tie wire and a rough

NRA EIRSPAN Printed Page

PR Inspection report 23-05-11 1

MO-N59-013.00 Tawnaghmore Bridge

Maintaining Agent: 23 MO - Mayo

Road.............: Ballysadare - Ballina - Westport - Clifden - Galway

Side of road.....:

Plate and Dist...: 520 1833

R e g i o n . . . . . . . . . . . : 1 Connacht\Ulster

Struct. reg. no..: 1189

Year of construction...................:

Year of reconstruction.................:

Primary passage Overbridge/Underbridge.:

Dir. of chainage on primary road.......: W

Access equipment needed................: 0 N o t h i n g

Data collected : Date..................: 2002.06.10

Inspector Initials....: JY/RR

Checker Initials......: LH/JK

Geographical position :

Latitude Y: 321678.082 Longitude X: 93683.559 m

Geometry : Number of spans.............: 1

Min span length..........(m): 2 . 4 0

Max span length..........(m): 2 . 4 0

Overall length...........(m): 2 . 4 0

Width out-to-out.........(m): 1 1 . 1 0

Width of median..........(m): 0 . 0 0

Width of footway left....(m): 0 . 0 0

Width of footway right...(m): 0 . 0 0

Width of carriageway.....(m): 7 . 1 0

Width kerb-to-kerb.......(m): 7 . 5 0

Width of approach....... (m): 7 . 1 0

A r e a . . . . . . . . . . . . . . . . . . . . ( m 2 ) : 2 6 . 6 4

Minimum Parapet Height...(m): 0 . 5 6

Width of Soft Verge......(m): 3 . 6 6

Approach Skew 1........(deg): 3 0 . 0 0

Approach Skew 2........(deg): 5 0 . 0 0

Bridge curved..........(Y/N): N

S k e w . . . . . . . . . . . . . . . . . . . ( d e g ) : 0

Span Lengths:

Span 1....(m): 2 . 4 0 Span 6....(m): 0 . 0 0 Span 11...(m): 0 . 0 0




Span 5....(m): 0 . 0 0 Span 10...(m): 0 . 0 0

Superstructure, principal type:

Standard design.................(Y/N):

Design of cross section..............: 60 Masonry arch

Design of elevation..................: 50 Arch, one or more spans

Material of primary members..........: 60 Stone masonry

Superstructure, secondary type (if applicable):

Standard design.................(Y/N): Y

Design of cross section..............: 10 S l a b

Design of elevation..................: 10 Simple span, cons. cross sect.

Material of primary members..........: 20 In situ Reinforced Concrete




Masonry arch (if applicable):

Span length.......................(m): 2 . 4 0

Rise of arch barrel at crown......(m): 1 . 0 0

Rise of arch barrel,quarter points(m): 0 . 8 5

Springing height above mudline....(m): 1 . 2 5

Thickness of arch barrel..........(m): 0 . 4 5

Average depth of fill.............(m): 2 . 2 0

Parapet thickness.................(m): 0 . 2 3

Material: Square cut/rubble (S/R):

Arch facing stones..: 20 Sandstone S

Arch barrel sheeting: 90 Other R

Spandrel walls......: 92 U n k n o w n

Average joint thickness: Mortar strength Soft/Hard:

Arch facing stones..: 10 Less than 10mm H

Arch barrel sheeting: 20 Between 10mm and 25mm H

Spandrel walls......: 92 U n k n o w n

Retaining wall (if applicable):

Overall length....................(m):

H e i g h t . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( m ) :

Thickness at top..................(m):

Thickness at bottom...............(m):

Area outer surface...............(m2):

T y p e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :

M a t e r i a l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :

F o u n d a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . :




Substructure:

Abutment : Type......................: 10 Abutm. wall, integ. wing walls

M a t e r i a l . . . . . . . . . . . . . . . . . . : 10 M a s o n r y

F o u n d a t i o n . . . . . . . . . . . . . . . . : 10 Spread footing

Pier.... : Type......................:

M a t e r i a l . . . . . . . . . . . . . . . . . . :

F o u n d a t i o n . . . . . . . . . . . . . . . . :

Details:

Type of parapet......................: 90 O t h e r

Type of safety barrier...............: 0 No guard rail

Type of wearing surface..............: 20 Bituminous surface dressing

Type of expansion joint..............: 50 No joint device

Type of fixed bearings on support....: 91 Not applicable

Type of free bearings on support.....: 91 Not applicable

Type of fixed bearings in girders....: 91 Not applicable

Type of free bearings in girders.....: 91 Not applicable

Obstacle:

Type of passage........:

Passage id.............:

Passage name...........:

Road side..............:

C h a i n a g e . . . . . . . . . . . . . . . :

Overpass passage:

Design load............:

Load distribution class:

Technical standard used: Unknown standard

Bridge class normal....:

Bridge class restricted:

Max. axle load......(t):

Vertical clearance:

Primary passage.....(m): L : L M : R M : R :

Secondary passage...(m): L : L M : R M : R :

Owner....................: 21 Mayo County Council

Maintaining Agent........: 21 Mayo County Council

Inspection Consultant....: 48 Roughan & O'Donovan/Maunsell

Designer.................: 92 Unknown

Technical documents......:

Technical installations..: 0 No technical installation

Remarks:

The structure is composite, on the RHS a masonry arch extends for 7.5m, on

the LHS an insitu concrete slab extends for 3.6m. The RHS wingwalls are

masonry and are supported adjacent the arch opening by mass concrete

buttresses which extend for 2.3m & 3.0m respectively. The LHS wingwalls are

reinforced concrete.

Geometry : The span quoted in the inventory is the span of the arch bridge,

the clear span of the RC section measures 2.4m, it was not possible to




Chronological overview :

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Date Activity Br Ex Fo Pa Em Wi Ab Pi Be De Be Ri Ot St

2002.06.10 Principal inspec 1 - - 3 0 2 1 - - 2 - 0 0 2



Last principal inspection:

Date..................................: 2011.05.16

Team Leader Name......................: Paraic Rattigan

Initials..............................: PR

Weather...............................: Rain

Temperature...................(deg. C): 8

Traffic: Annual Average Daily Traffic : 866

Percentage, light vehicles.. : 96

Percentage, heavy vehicles.. : 4

Year for next principal inspection... : 2016

Remark:

The traffic data has been obtained from the National Roads and Traffic Flow

2004 document for the N59 at the junction with the R313 to Belmullet.

Wingwall & arch barrel cracking: Crack gauges have been installed across the

cracks at all four corners of the abutments and across the crack through the

arch barrel to asertain if any movement is still occuring. The initial

reading is zero.




No Component Repair work

Repair work Con Mtn Spe Pho

- Damage description rtg rtg Ins T tos

Type of damage P Qty Year Cost

1 Bridge surface 1 + 1

- There is no change since previous

i n s p e c t i o n .

General wear/polishing and slight

unevenness of surfacing over

structure, rutting has commenced on

the westbound carriageway behind

the west abutment.

Material deterioration

2 Expansion joints -

- Not applicable.

3 Footways/median -

- Not applicable, between the

pavement and the parapets a soft

grassed verge exists.

4 Parapets/Safety barrier 2 + 1

I:Installation of road guardrail I 90 2003 9000

- There are no safety barriers on the

approaches to the parapets.

The vertical cracks and lateral

movement seen on the four wingwalls

extend vertically up through the

parapets, these cracks have been

grouted previously and the crack

measure still reads 1mm since last

inspection and so it appears that

the repairs have been effective.

M i s s i n g

5 Embankments/Revetments 0 +

- No visable defects.

6 Wing/Spandrel/Retaining Walls 2 + 2

E:Injection of cracks E 20 2012 5000

- The full height cracks which extend

vertically up the wingwalls behind

the abutments on the LHS do not

appear to have gotten any wider

since previous inspection and the

crack measure is at just 1mm. The

cracks gain width with height and

the wingwalls are displaced

horizontally. It is considered that

the cracks have been caused by the

settlement/rotation of the

wingwalls and are not actively

p r o g r e s s i v e .

Cracking of concrete








7 Abutments 1 + 1

D:Masonry repointing D 2 2007 250

- The abutments have settled at some

time in the past and a vertical

crack up to 15mm wide extends from

the deck through both abutments.

This appears to have progressed

slightly since last inspection.

The RC abutments have light

honeycombing across the faces,

instances of tie wire and a rough

formwork finish (photo 3)

Tilt / settlement

8 Piers -

- Not applicable.

9 Bearings -

- Not applicable.

10 Deck/slab/arch barrel 2 + 2

C:Masonry repair C 2 2006 3000

D:Masonry repointing D 2 2006 370

- A slight progression of the

vertical crack has occured since

last inspection. The crack now

measures up to 15mm wide and

extends across the barrel and

through the abutments. (photo 1 &

2). The soffit is generally dry

except at the interface beteen the

masonry arch and the insitu culvert.

Masonry has been repointed across

the majority of the barrel. The

arch has been repointed but the

crack has opened again.

At the joint between the masonry

and the concrete deck a lot of

water was seen dripping and the

soffit is damp, a form of bond

breaker was observed along the line

of the joint. The soft verge and

carriageway fall is considered the

likely reason for the water ingress.

No defects were noted across the RC

d e c k .

Structural damage

11 Beams/girders/transverse beams -

- Not applicable.








12 Riverbed 0 +

- No obstructions noted, a concrete

invert has been constructed under

the concrete section of the bridge.

13 Other elements 0 +

- Spandrel Walls: The RHS spandrel

has been rebuilt in concrete and is

supported by mass concrete

buttresses, the LHS is supported by

the RC extension to the structure.

14 Structure in general 2 + 1

- The telltales across the cracks on

the arch barrel show some movement

since last inspection and it is

reccomended that remedial measures

are taken to prevent further

d e t e r i o r a t i o n .

Total cost 17620

NRA EIRSPAN Printed Comp

PR Inspection report 11.05.23 1


C o m p o n e n t . . . . . . . . . . : 1 Bridge surface

C o n d i t i o n / M a i n t e n . . : 1 / +

D a m a g e / R e m a r k s . . . . . : There is no change since previous inspection.

General wear/polishing and slight unevenness of

surfacing over structure, rutting has commenced on

the westbound carriageway behind the west abutment.

Damage type........: Material deterioration




C o m p o n e n t . . . . . . . . . . : 4 Parapets/Safety barrier


D a m a g e / R e m a r k s . . . . . : There are no safety barriers on the approaches to

the parapets.

The vertical cracks and lateral movement seen on

the four wingwalls extend vertically up through the

parapets, these cracks have been grouted previously

and the crack measure still reads 1mm since last

inspection and so it appears that the repairs have

Damage type........: M i s s i n g

Repair works.......: I Installation of road guardrail




C o m p o n e n t . . . . . . . . . . : 6 Wing/Spandrel/Retaining Walls


D a m a g e / R e m a r k s . . . . . : The full height cracks which extend vertically up

the wingwalls behind the abutments on the LHS do

not appear to have gotten any wider since previous

inspection and the crack measure is at just 1mm.

The cracks gain width with height and the wingwalls

are displaced horizontally. It is considered that


Damage type........: Cracking of concrete

Repair works.......: E Injection of cracks




C o m p o n e n t . . . . . . . . . . : 6 Wing/Spandrel/Retaining Walls


D a m a g e / R e m a r k s . . . . . : The full height cracks which extend vertically up

the wingwalls behind the abutments on the LHS do

not appear to have gotten any wider since previous

inspection and the crack measure is at just 1mm.

The cracks gain width with height and the wingwalls

are displaced horizontally. It is considered that


Damage type........: Cracking of concrete

Repair works.......: E Injection of cracks




C o m p o n e n t . . . . . . . . . . : 7 A b u t m e n t s


D a m a g e / R e m a r k s . . . . . : The abutments have settled at some time in the past

and a vertical crack up to 15mm wide extends from

the deck through both abutments. This appears to

have progressed slightly since last inspection.

The RC abutments have light honeycombing across the

faces, instances of tie wire and a rough formwork

finish (photo 3)

Damage type........: Tilt / settlement

Repair works.......: D Masonry repointing




C o m p o n e n t . . . . . . . . . . : 10 Deck/slab/arch barrel


D a m a g e / R e m a r k s . . . . . : A slight progression of the vertical crack has

occured since last inspection. The crack now

measures up to 15mm wide and extends across the

barrel and through the abutments. (photo 1 & 2).

The soffit is generally dry except at the interface

beteen the masonry arch and the insitu culvert.

Masonry has been repointed across the majority of

Damage type........: Structural damage

Repair works.......: C Masonry repair

D Masonry repointing




C o m p o n e n t . . . . . . . . . . : 10 Deck/slab/arch barrel


D a m a g e / R e m a r k s . . . . . : A slight progression of the vertical crack has

occured since last inspection. The crack now

measures up to 15mm wide and extends across the

barrel and through the abutments. (photo 1 & 2).

The soffit is generally dry except at the interface

beteen the masonry arch and the insitu culvert.

Masonry has been repointed across the majority of

Damage type........: Structural damage

Repair works.......: C Masonry repair

D Masonry repointing




C o m p o n e n t . . . . . . . . . . : 14 Structure in general


D a m a g e / R e m a r k s . . . . . : The telltales across the cracks on the arch barrel

show some movement since last inspection and it is

reccomended that remedial measures are taken to

prevent further deterioration.

Documents

NRA EIRSPAN Printed Page MO-N59-013.00 Tawnaghmore Bridge ... · MO-N59-013.00 Tawnaghmore Bridge Maintaining Agent: 23 MO ... Struct. reg. no..: ... instances of tie wire and a rough