US Bridges

Oak Street over Norfolk S. RR L Conem R

Fair

Cambria County, Pennsylvania · Southfork Borough Oak ST · Structure no. 000000000008810

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
385 ft
4 main spans
Daily traffic
1,350
2023 count
Owner
County
County Highway Agency

About this bridge

Oak Street over Norfolk S. RR L Conem R is a prestressed concrete stringer/multi-beam or girder carrying Oak Street over Norfolk S. RR L Conem R in Cambria County, Pennsylvania. It was built in 1990, so it is 35 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 1,350 vehicles a day, roughly 10% of them trucks, projected to reach 1,688 by 2043. The structure is 385 ft (117.3 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesOak Street
CrossesNorfolk S. RR L Conem R
LocationSouthfork Borough Oak ST
RouteCity Street 0
CountyCambria County
StatePennsylvania
Coordinates40.36918, -78.78545
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length385 ft (117.3 m)
Longest span109 ft (33.2 m)
Deck width35 ft (10.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2023)
Projected traffic1,688 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Oak Street over Norfolk S. RR L Conem R built?

It was built in 1990, making it 35 years old in 2025.

What condition is Oak Street over Norfolk S. RR L Conem R 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 Oak Street over Norfolk S. RR L Conem R carry?

About 1,350 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Oak Street over Norfolk S. RR L Conem R?

The structure is 385 ft (117.3 m) long with a longest span of 109 ft (33.2 m) and a deck 35 ft wide.

Who owns Oak Street over Norfolk S. RR L Conem R?

It is owned by the County Highway Agency.