US Bridges

SR 4007 over Silver Creek

Fair

Elk County, Pennsylvania · Johnsonburg Boro · Structure no. 000000000015727

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
546
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4007 over Silver Creek is a prestressed concrete box beam or girders - multiple 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 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 546 vehicles a day, roughly 8% of them trucks, projected to reach 782 by 2044. The structure is 38 ft (11.6 m) long and 48 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR 4007
CrossesSilver Creek
LocationJohnsonburg Boro
RouteState Highway 0
CountyElk County
StatePennsylvania
Coordinates41.50254, -78.68901
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic546 (2024)
Projected traffic782 by 2044
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$474,000
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 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 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 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 48 ft wide.

Who owns SR 4007 over Silver Creek?

It is owned by the State Highway Agency.