US Bridges

SR 1028 over Little Crabtree Creek

Fair

Westmoreland County, Pennsylvania · Unity Township · Structure no. 000000000036421

Built
1950
75 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
922
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1028 over Little Crabtree Creek is a concrete tee beam carrying SR 1028 over Little Crabtree Creek in Westmoreland County, Pennsylvania. It was built in 1950, so it is 75 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 922 vehicles a day, roughly 11% of them trucks, projected to reach 1,390 by 2032. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSR 1028
CrossesLittle Crabtree Creek
LocationUnity Township
RouteState Highway 0
Coordinates40.33851, -79.46335
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic922 (2024)
Projected traffic1,390 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1028 over Little Crabtree Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 1028 over Little Crabtree 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 December 2023.

How much traffic does SR 1028 over Little Crabtree Creek carry?

About 922 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR 1028 over Little Crabtree Creek?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 28 ft wide.

Who owns SR 1028 over Little Crabtree Creek?

It is owned by the State Highway Agency.