US Bridges

Upton RD over Stoney Brook

Fair

Oxford County, Maine · 2.2 MI W JCT RTE 5 & 120 · Structure no. 3971

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
248
2016 count
Owner
State
State Highway Agency

About this bridge

Upton RD over Stoney Brook is a concrete slab carrying Upton RD over Stoney Brook in Oxford County, Maine. It was built in 1951, so it is 74 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 248 vehicles a day, roughly 5% of them trucks, projected to reach 397 by 2036. The structure is 30 ft (9 m) long and 26 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesUpton RD
CrossesStoney Brook
Location2.2 MI W JCT RTE 5 & 120
RouteCity Street 0
CountyOxford County
StateMaine
Coordinates44.63726, -70.79334
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.6 US tons
Inventory rating64.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9 m)
Longest span25 ft (7.6 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2016)
Projected traffic397 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 Upton RD over Stoney Brook built?

It was built in 1951, making it 74 years old in 2025.

What condition is Upton RD over Stoney Brook 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 August 2024.

How much traffic does Upton RD over Stoney Brook carry?

About 248 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Upton RD over Stoney Brook?

The structure is 30 ft (9 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns Upton RD over Stoney Brook?

It is owned by the State Highway Agency.