US Bridges

SR 6-US 6 over Allegheny River

Fair

Potter County, Pennsylvania · Coudersport Boro · Structure no. 000000000030095

Built
1949
76 years old, rebuilt 2017
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
7,298
2024 count
Owner
State
State Highway Agency

About this bridge

SR 6-US 6 over Allegheny River is a steel stringer/multi-beam or girder carrying SR 6-US 6 over Allegheny River in Potter County, Pennsylvania. It was built in 1949 and reconstructed in 2017, so it is 76 years old, older 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 6 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 7,298 vehicles a day, roughly 11% of them trucks, projected to reach 9,985 by 2043. The structure is 73 ft (22.3 m) long and 54 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesSR 6-US 6
CrossesAllegheny River
LocationCoudersport Boro
RouteU.S. Route 6
CountyPotter County
StatePennsylvania
Coordinates41.77258, -78.02117
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.3 m)
Longest span70 ft (21.3 m)
Deck width54 ft (16.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,298 (2024)
Projected traffic9,985 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$750,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 6-US 6 over Allegheny River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2017.

What condition is SR 6-US 6 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 July 2023.

How much traffic does SR 6-US 6 over Allegheny River carry?

About 7,298 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR 6-US 6 over Allegheny River?

The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 54 ft wide.

Who owns SR 6-US 6 over Allegheny River?

It is owned by the State Highway Agency.