US Bridges

King ST over Thompson Lake Outlet

Fair

Oxford County, Maine · 0.1 MI S of JCT RTE 121 · Structure no. 5552

Built
1954
71 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
2,051
2016 count
Owner
State
State Highway Agency

About this bridge

King ST over Thompson Lake Outlet is a concrete slab carrying King ST over Thompson Lake Outlet in Oxford County, Maine. It was built in 1954, so it is 71 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 2,051 vehicles a day, roughly 5% of them trucks, projected to reach 2,871 by 2036. The structure is 34 ft (10.5 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesKing ST
CrossesThompson Lake Outlet
Location0.1 MI S of JCT RTE 121
RouteCounty Highway 0
CountyOxford County
StateMaine
Coordinates44.13532, -70.49091
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.5 m)
Longest span30 ft (9.1 m)
Deck width32 ft (9.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,051 (2016)
Projected traffic2,871 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 King ST over Thompson Lake Outlet built?

It was built in 1954, making it 71 years old in 2025.

What condition is King ST over Thompson Lake Outlet 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 April 2024.

How much traffic does King ST over Thompson Lake Outlet carry?

About 2,051 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is King ST over Thompson Lake Outlet?

The structure is 34 ft (10.5 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.

Who owns King ST over Thompson Lake Outlet?

It is owned by the State Highway Agency.