US Bridges

Perham RD over Salmon Stream

Good

Aroostook County, Maine · .9 MI N Townline · Structure no. 2739

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
400
2016 count
Owner
State
State Highway Agency

About this bridge

Perham RD over Salmon Stream is a concrete culvert carrying Perham RD over Salmon Stream in Aroostook County, Maine. It was built in 2024, so it is 1 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 400 vehicles a day, roughly 5% of them trucks, projected to reach 640 by 2036. The structure is 26 ft (8 m) long. If it were closed, the detour would be 21.7 mi (35 km).

CarriesPerham RD
CrossesSalmon Stream
Location.9 MI N Townline
RouteState Highway 228
StateMaine
Coordinates46.84595, -68.19555
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length26 ft (8 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2016)
Projected traffic640 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 Perham RD over Salmon Stream built?

It was built in 2024, making it 1 years old in 2025.

What condition is Perham RD over Salmon Stream 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 November 2024.

How much traffic does Perham RD over Salmon Stream carry?

About 400 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Perham RD over Salmon Stream?

The structure is 26 ft (8 m) long with a longest span of 24 ft (7.3 m).

Who owns Perham RD over Salmon Stream?

It is owned by the State Highway Agency.