US Bridges

Washington ST over Megunticook River

Good

Knox County, Maine · 0.8 MI NW of JCT RTE US1 · Structure no. 5077

Built
1999
26 years old
Condition
Good
inspected October 2023
Type
Arch - Deck
Concrete
Length
38 ft
1 main span
Daily traffic
2,720
2016 count
Owner
State
State Highway Agency

About this bridge

Washington ST over Megunticook River is a concrete arch - deck carrying Washington ST over Megunticook River in Knox County, Maine. It was built in 1999, so it is 26 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,720 vehicles a day, roughly 5% of them trucks, projected to reach 3,808 by 2036. The structure is 38 ft (11.7 m) long and 38 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesWashington ST
CrossesMegunticook River
Location0.8 MI NW of JCT RTE US1
RouteCounty Highway 105
StateMaine
Coordinates44.21643, -69.07798
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than 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 rating72.5 US tons
Inventory rating50.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.7 m)
Longest span36 ft (11 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,720 (2016)
Projected traffic3,808 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.9 mi (24 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 Washington ST over Megunticook River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Washington ST over Megunticook 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 October 2023.

How much traffic does Washington ST over Megunticook River carry?

About 2,720 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Washington ST over Megunticook River?

The structure is 38 ft (11.7 m) long with a longest span of 36 ft (11 m) and a deck 38 ft wide.

Who owns Washington ST over Megunticook River?

It is owned by the State Highway Agency.