US Bridges

School ST over Androscoggin River

Good

Oxford County, Maine · 1.6 MI Nly JCT 108 · Structure no. 2312

Built
2005
20 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
503 ft
3 main spans
Daily traffic
1,734
2016 count
Owner
State
State Highway Agency

About this bridge

School ST over Androscoggin River is a steel continuous stringer/multi-beam or girder carrying School ST over Androscoggin River in Oxford County, Maine. It was built in 2005, so it is 20 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,734 vehicles a day, roughly 5% of them trucks, projected to reach 2,601 by 2036. The structure is 503 ft (153.4 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSchool ST
CrossesAndroscoggin River
Location1.6 MI Nly JCT 108
RouteCounty Highway 140
StateMaine
Coordinates44.46088, -70.30424
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating50 US tons
Inventory rating38.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length503 ft (153.4 m)
Longest span200 ft (60.9 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,734 (2016)
Projected traffic2,601 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was School ST over Androscoggin River built?

It was built in 2005, making it 20 years old in 2025.

What condition is School ST over Androscoggin River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does School ST over Androscoggin River carry?

About 1,734 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is School ST over Androscoggin River?

The structure is 503 ft (153.4 m) long with a longest span of 200 ft (60.9 m) and a deck 38 ft wide.

Who owns School ST over Androscoggin River?

It is owned by the State Highway Agency.