US Bridges

S Arm RD over Black Brook

Good

Oxford County, Maine · 2.5 MI N of JCT RTE 120 · Structure no. 0641

Built
2005
20 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
53 ft
1 main span
Daily traffic
196
2016 count
Owner
State
State Highway Agency

About this bridge

S Arm RD over Black Brook is a concrete box beam or girders - multiple carrying S Arm RD over Black Brook in Oxford County, Maine. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 196 vehicles a day, roughly 5% of them trucks, projected to reach 314 by 2036. The structure is 53 ft (16.2 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesS Arm RD
CrossesBlack Brook
Location2.5 MI N of JCT RTE 120
RouteCity Street 0
StateMaine
Coordinates44.66902, -70.72576
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length53 ft (16.2 m)
Longest span50 ft (15.2 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic196 (2016)
Projected traffic314 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 S Arm RD over Black Brook built?

It was built in 2005, making it 20 years old in 2025.

What condition is S Arm RD over Black Brook 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 July 2024.

How much traffic does S Arm RD over Black Brook carry?

About 196 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is S Arm RD over Black Brook?

The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 24 ft wide.

Who owns S Arm RD over Black Brook?

It is owned by the State Highway Agency.