Project 0040-0146, Replacement of Bridge No. 02510 ......Jun 11, 2020  · CONNECTICUT DEPARTMENT OF...

CONNECTICUT DEPARTMENT OF TRANSPORTATION

Project 0040-0146, Replacement of Bridge No. 02510 carrying Route 82 over Strongs

BrookEast Haddam

CONNECTICUT DEPARTMENT OF TRANSPORTATION

Bridge Aerial View

Bridge 02510

Strongs Brook

Route 82

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CONNECTICUT DEPARTMENT OF TRANSPORTATION

Project Location

Bridge No. 02510

Strongs Brook

Route 82

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CONNECTICUT DEPARTMENT OF TRANSPORTATION

Existing Roadway

Looking East Looking West

CONNECTICUT DEPARTMENT OF TRANSPORTATION

South Elevation

Elevations

North Elevation

CONNECTICUT DEPARTMENT OF TRANSPORTATION

Structure Deterioration

CONNECTICUT DEPARTMENT OF TRANSPORTATION

The Bridge is adjacent to two driveways that share an entrance. Due to the proximity of the driveways to thebridge, a protective Metal Beam Rail (MBR) system cannot be attached to one side of the concrete parapet of thebridge, which leaves a dangerous blunt end exposed for vehicles travelling along Route 82 (see circle in photo).An MBR system is attached to the other side of the parapet (see arrow).

Existing Safety Concerns

Metal Beam Rail (MBR) systemattached to concrete parapet

CONNECTICUT DEPARTMENT OF TRANSPORTATION

The bridge (and channel) are proposed to be relocated to the south along Route 82 to permit the installation of aprotective rail system on the new concrete barrier to eliminate a dangerous blunt end condition.

Existing Safety Concerns

Bridge 02510 is proposed to be relocated away from theShared driveway entrance to accommodate safety improvements.

Approximate new location(proposed)

Existing Bridge location

CONNECTICUT DEPARTMENT OF TRANSPORTATION

• In addition, the stream at inlet runs too closely and parallel to the roadway.

• The roadway is settling at the inlet side.

• Vertical posts have virtually no room for deflection.

Existing Safety Concerns, continued…

CONNECTICUT DEPARTMENT OF TRANSPORTATION

• Access road

• Temporarily relocate overhead utilities

• Implement detour

• Install cofferdam at new proposed bridge location

• Install box culvert & lay out proposed stream realignment

• Remove cofferdam & relocate water to new stream

• Remove existing structure and stone wall

Proposed Project Scope

CONNECTICUT DEPARTMENT OF TRANSPORTATION

Proposed Project Schedule• Schedule:

Anticipated construction schedule start: April 2022

• Duration:

Project construction duration: One construction season (10 mo.)

• Maintenance and Protection of Traffic:

Alternating one-way: 5 weeks

Detour route: 8 weeks

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CONNECTICUT DEPARTMENT OF TRANSPORTATION

• Directional Detour (some local roads)

• Eastbound detour includes Routes434 & 11, it is approx. 10 miles long

• Westbound detour includes Routes156 & Salem/White Birch rd. and is approx. 5 miles long

Proposed Passenger Vehicle Detour

CONNECTICUT DEPARTMENT OF TRANSPORTATION

Proposed Truck Detour

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CONNECTICUT DEPARTMENT OF TRANSPORTATION

• ROW impacts include constructioneasements and permanent (partial)takes at the bridge location forconstruction of the bridge and forthe proposed stream realignment.

Considerations

• Overhead utilities will be relocated at a greater offset to Route 82.