US Bridges

SR 4007 over Silver Creek

Good

Elk County, Pennsylvania · 1 MI NW Johnsonburg · Structure no. 000000000015728

Built
1970
55 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
546
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4007 over Silver Creek is a concrete slab carrying SR 4007 over Silver Creek in Elk County, Pennsylvania. It was built in 1970, so it is 55 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 546 vehicles a day, roughly 8% of them trucks, projected to reach 782 by 2042. The structure is 28 ft (8.5 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 4007
CrossesSilver Creek
Location1 MI NW Johnsonburg
RouteState Highway 0
Coordinates41.51264, -78.68871
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width46 ft (14 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic546 (2024)
Projected traffic782 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$360,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4007 over Silver Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 4007 over Silver Creek 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 April 2024.

How much traffic does SR 4007 over Silver Creek carry?

About 546 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 4007 over Silver Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 46 ft wide.

Who owns SR 4007 over Silver Creek?

It is owned by the State Highway Agency.