US Bridges

Perry Mountain over Shepard River

Good

Oxford County, Maine · 300 Feet N of W Main ST · Structure no. 0712

Built
2003
22 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
120
2016 count
Owner
State
State Highway Agency

About this bridge

Perry Mountain over Shepard River is a prestressed concrete box beam or girders - multiple carrying Perry Mountain over Shepard River in Oxford County, Maine. It was built in 2003, so it is 22 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 120 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2036. The structure is 53 ft (16.1 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPerry Mountain
CrossesShepard River
Location300 Feet N of W Main ST
RouteCity Street 0
StateMaine
Coordinates43.93762, -70.91943
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating51.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length53 ft (16.1 m)
Longest span51 ft (15.5 m)
Deck width19 ft (5.8 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2016)
Projected traffic192 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Perry Mountain over Shepard River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Perry Mountain over Shepard River 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 Perry Mountain over Shepard River carry?

About 120 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Perry Mountain over Shepard River?

The structure is 53 ft (16.1 m) long with a longest span of 51 ft (15.5 m) and a deck 19 ft wide.

Who owns Perry Mountain over Shepard River?

It is owned by the State Highway Agency.