US Bridges

ST 2 Mohawk Trail over Comb River Rd&conn Riv

Fair

Franklin County, Massachusetts · Mm 56.2 on ST 2 · Structure no. E100140UCDOTNBI

Built
1931
94 years old, rebuilt 1992
Condition
Fair
inspected June 2023
Type
Arch - Deck
Steel Continuous
Length
866 ft
3 main spans
Daily traffic
10,560
2023 count
Owner
State
State Highway Agency

About this bridge

ST 2 Mohawk Trail over Comb River Rd&conn Riv is a steel continuous arch - deck carrying ST 2 Mohawk Trail over Comb River Rd&conn Riv in Franklin County, Massachusetts. It was built in 1931 and reconstructed in 1992, so it is 94 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,560 vehicles a day, roughly 8% of them trucks, projected to reach 14,214 by 2032. The structure is 866 ft (264 m) long and 50 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesST 2 Mohawk Trail
CrossesComb River Rd&conn Riv
LocationMm 56.2 on ST 2
RouteState Highway 2
Coordinates42.59786, -72.49661
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.8 US tons
Inventory rating21.5 US tons

Structure

Structure typeArch - Deck
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadH 20
Structure length866 ft (264 m)
Longest span460 ft (140.2 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,560 (2023)
Projected traffic14,214 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$39 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 2 Mohawk Trail over Comb River Rd&conn Riv built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1992.

What condition is ST 2 Mohawk Trail over Comb River Rd&conn Riv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does ST 2 Mohawk Trail over Comb River Rd&conn Riv carry?

About 10,560 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is ST 2 Mohawk Trail over Comb River Rd&conn Riv?

The structure is 866 ft (264 m) long with a longest span of 460 ft (140.2 m) and a deck 50 ft wide.

Who owns ST 2 Mohawk Trail over Comb River Rd&conn Riv?

It is owned by the State Highway Agency.