US Bridges

State Street over Peters Creek

Fair

Allegheny County, Pennsylvania · 0.5 MI S of 885 · Structure no. 000000000001268

Built
1935
90 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
50 ft
1 main span
Daily traffic
6,888
2023 count
Owner
State
State Highway Agency

About this bridge

State Street over Peters Creek is a concrete arch - deck carrying State Street over Peters Creek in Allegheny County, Pennsylvania. It was built in 1935, so it is 90 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 6,888 vehicles a day, roughly 11% of them trucks, projected to reach 10,042 by 2032. The structure is 50 ft (15.2 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesState Street
CrossesPeters Creek
Location0.5 MI S of 885
RouteState Highway 837
Coordinates40.30429, -79.88183
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 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 rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width57 ft (17.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,888 (2023)
Projected traffic10,042 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$257,000
NavigationNo navigation control on waterway

Frequently asked questions

When was State Street over Peters Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is State Street over Peters 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 June 2024.

How much traffic does State Street over Peters Creek carry?

About 6,888 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is State Street over Peters Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 57 ft wide.

Who owns State Street over Peters Creek?

It is owned by the State Highway Agency.