US Bridges

Main ST over Sheepscot River

Fair

Lincoln County, Maine · 0.5 MI E JCT RTE 17 · Structure no. 2175

Built
1921
104 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
39 ft
1 main span
Daily traffic
883
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Sheepscot River is a concrete culvert carrying Main ST over Sheepscot River in Lincoln County, Maine. It was built in 1921, so it is 104 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 883 vehicles a day, roughly 5% of them trucks, projected to reach 1,413 by 2036. The structure is 39 ft (11.9 m) long.

CarriesMain ST
CrossesSheepscot River
Location0.5 MI E JCT RTE 17
RouteCity Street 0
StateMaine
Coordinates44.25851, -69.55088
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating38.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length39 ft (11.9 m)
Longest span35 ft (10.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic883 (2016)
Projected traffic1,413 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Main ST over Sheepscot River built?

It was built in 1921, making it 104 years old in 2025.

What condition is Main ST over Sheepscot 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 2024.

How much traffic does Main ST over Sheepscot River carry?

About 883 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Sheepscot River?

The structure is 39 ft (11.9 m) long with a longest span of 35 ft (10.7 m).

Who owns Main ST over Sheepscot River?

It is owned by the State Highway Agency.