US Bridges

Bridge Street over Androscoggin River

Fair

Coos County, New Hampshire · 0.17 MI JCT RTE 16 · Structure no. 017002010009700

Built
1969
56 years old, rebuilt 2013
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
274 ft
3 main spans
Daily traffic
985
2023 count
Owner
State
State Highway Agency

About this bridge

Bridge Street over Androscoggin River is a steel stringer/multi-beam or girder carrying Bridge Street over Androscoggin River in Coos County, New Hampshire. It was built in 1969 and reconstructed in 2013, so it is 56 years old, younger than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 985 vehicles a day, roughly 10% of them trucks, projected to reach 1,457 by 2043. The structure is 274 ft (83.5 m) long and 30 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesBridge Street
CrossesAndroscoggin River
Location0.17 MI JCT RTE 16
RouteState Highway 0
Coordinates44.57402, -71.1816
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.5 US tons
Inventory rating29.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length274 ft (83.5 m)
Longest span89 ft (27.1 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic985 (2023)
Projected traffic1,457 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridge Street over Androscoggin River built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2013.

What condition is Bridge Street 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 July 2023.

How much traffic does Bridge Street over Androscoggin River carry?

About 985 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Bridge Street over Androscoggin River?

The structure is 274 ft (83.5 m) long with a longest span of 89 ft (27.1 m) and a deck 30 ft wide.

Who owns Bridge Street over Androscoggin River?

It is owned by the State Highway Agency.