US Bridges

State Route 121 over Sucker Bk

Fair

Oxford County, Maine · 1.5 MI Swly of Oxford Tl · Structure no. 5049

Built
1925
100 years old, rebuilt 1964
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
2,127
2016 count
Owner
State
State Highway Agency

About this bridge

State Route 121 over Sucker Bk is a concrete culvert carrying State Route 121 over Sucker Bk in Oxford County, Maine. It was built in 1925 and reconstructed in 1964, so it is 100 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 2,127 vehicles a day, roughly 5% of them trucks, projected to reach 2,978 by 2036. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesState Route 121
CrossesSucker Bk
Location1.5 MI Swly of Oxford Tl
RouteCounty Highway 121
StateMaine
Coordinates44.09422, -70.52582
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,127 (2016)
Projected traffic2,978 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was State Route 121 over Sucker Bk built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1964.

What condition is State Route 121 over Sucker Bk 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 State Route 121 over Sucker Bk carry?

About 2,127 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is State Route 121 over Sucker Bk?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m).

Who owns State Route 121 over Sucker Bk?

It is owned by the State Highway Agency.