US Bridges

T-398 Long Road over Allegheny River

Fair

Potter County, Pennsylvania · 0.1 MI South of SR 49 · Structure no. 000000000030437

Built
1975
50 years old
Condition
Fair
inspected March 2023
Type
Culvert
Steel
Length
33 ft
1 main span
Daily traffic
20
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-398 Long Road over Allegheny River is a steel culvert carrying T-398 Long Road over Allegheny River in Potter County, Pennsylvania. It was built in 1975, so it is 50 years old, younger than the Pennsylvania average of 54.8 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 20 vehicles a day, roughly 1% of them trucks, projected to reach 40 by 2035. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT-398 Long Road
CrossesAllegheny River
Location0.1 MI South of SR 49
RouteCity Street 0
CountyPotter County
StatePennsylvania
Coordinates41.83526, -77.9208
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
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 inspectionMarch 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span33 ft (10.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2015)
Projected traffic40 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T-398 Long Road over Allegheny River built?

It was built in 1975, making it 50 years old in 2025.

What condition is T-398 Long Road over Allegheny River 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 March 2023.

How much traffic does T-398 Long Road over Allegheny River carry?

About 20 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is T-398 Long Road over Allegheny River?

The structure is 33 ft (10.1 m) long with a longest span of 33 ft (10.1 m).

Who owns T-398 Long Road over Allegheny River?

It is owned by the Town or Township Highway Agency.