US Bridges

Broad ST over Androscoggin River

Fair

Androscoggin County, Maine · Townline · Structure no. 3330

Built
1936
89 years old, rebuilt 1996
Condition
Fair
inspected November 2024
Type
Truss - Thru
Steel
Length
723 ft
3 main spans
Daily traffic
12,578
2021 count
Owner
State
State Highway Agency

About this bridge

Broad ST over Androscoggin River is a steel truss - thru carrying Broad ST over Androscoggin River in Androscoggin County, Maine. It was built in 1936 and reconstructed in 1996, so it is 89 years old, older than the Maine average of 53.7 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 12,578 vehicles a day, roughly 9% of them trucks, projected to reach 21,805 by 2036. The structure is 723 ft (220.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBroad ST
CrossesAndroscoggin River
LocationTownline
RouteState Highway 0
StateMaine
Coordinates44.08953, -70.22131
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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.5 US tons
Inventory rating36.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length723 ft (220.4 m)
Longest span235 ft (71.6 m)
Deck width42 ft (12.7 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic12,578 (2021)
Projected traffic21,805 by 2036
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Broad ST over Androscoggin River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1996.

What condition is Broad ST over Androscoggin River 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 November 2024.

How much traffic does Broad ST over Androscoggin River carry?

About 12,578 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Broad ST over Androscoggin River?

The structure is 723 ft (220.4 m) long with a longest span of 235 ft (71.6 m) and a deck 42 ft wide.

Who owns Broad ST over Androscoggin River?

It is owned by the State Highway Agency.