US Bridges

SR 0030 over Nine Mile Run

Fair

Westmoreland County, Pennsylvania · Unity Township · Structure no. 000000000035948

Built
1931
94 years old, rebuilt 1960
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
60 ft
1 main span
Daily traffic
24,684
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0030 over Nine Mile Run is a concrete culvert carrying SR 0030 over Nine Mile Run in Westmoreland County, Pennsylvania. It was built in 1931 and reconstructed in 1960, so it is 94 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 24,684 vehicles a day, roughly 5% of them trucks, projected to reach 24,254 by 2032. The structure is 60 ft (18.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 0030
CrossesNine Mile Run
LocationUnity Township
RouteU.S. Route 30
CountyWestmoreland County
StatePennsylvania
Coordinates40.28751, -79.3713
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,684 (2024)
Projected traffic24,254 by 2032
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 0030 over Nine Mile Run built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1960.

What condition is SR 0030 over Nine Mile Run 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 2023.

How much traffic does SR 0030 over Nine Mile Run carry?

About 24,684 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 0030 over Nine Mile Run?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m).

Who owns SR 0030 over Nine Mile Run?

It is owned by the State Highway Agency.