US Bridges

SR4035 over Trib to Buffalo Creek

Fair

Armstrong County, Pennsylvania · Yellow Dog NO.2 · Structure no. 000000000003339

Built
1936
89 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
23 ft
1 main span
Daily traffic
299
2024 count
Owner
State
State Highway Agency

About this bridge

SR4035 over Trib to Buffalo Creek is a concrete tee beam carrying SR4035 over Trib to Buffalo Creek in Armstrong County, Pennsylvania. It was built in 1936, so it is 89 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 299 vehicles a day, roughly 17% of them trucks, projected to reach 434 by 2032. The structure is 23 ft (7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR4035
CrossesTrib to Buffalo Creek
LocationYellow Dog NO.2
RouteState Highway 0
CountyArmstrong County
StatePennsylvania
Coordinates40.83062, -79.65422
Functional classRural Local

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.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic299 (2024)
Projected traffic434 by 2032
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR4035 over Trib to Buffalo Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is SR4035 over Trib to Buffalo 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 September 2024.

How much traffic does SR4035 over Trib to Buffalo Creek carry?

About 299 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is SR4035 over Trib to Buffalo Creek?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 26 ft wide.

Who owns SR4035 over Trib to Buffalo Creek?

It is owned by the State Highway Agency.