US Bridges

SR 3047 over S.Br.Blacklick Creek

Fair

Cambria County, Pennsylvania · Twin Rocks · Structure no. 000000000008675

Built
1954
71 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
923
2024 count
Owner
State
State Highway Agency

About this bridge

SR 3047 over S.Br.Blacklick Creek is a steel stringer/multi-beam or girder carrying SR 3047 over S.Br.Blacklick Creek in Cambria County, Pennsylvania. It was built in 1954, so it is 71 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 923 vehicles a day, roughly 2% of them trucks, projected to reach 673 by 2032. The structure is 75 ft (22.9 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesSR 3047
CrossesS.Br.Blacklick Creek
LocationTwin Rocks
RouteState Highway 0
CountyCambria County
StatePennsylvania
Coordinates40.49032, -78.86264
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span71 ft (21.6 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic923 (2024)
Projected traffic673 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3047 over S.Br.Blacklick Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is SR 3047 over S.Br.Blacklick Creek 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 May 2024.

How much traffic does SR 3047 over S.Br.Blacklick Creek carry?

About 923 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR 3047 over S.Br.Blacklick Creek?

The structure is 75 ft (22.9 m) long with a longest span of 71 ft (21.6 m) and a deck 32 ft wide.

Who owns SR 3047 over S.Br.Blacklick Creek?

It is owned by the State Highway Agency.