US Bridges

SR4010 over Trib to Buffalo Creek

Poor

Armstrong County, Pennsylvania · Worthington NO.6 · Structure no. 000000000003318

Built
1925
100 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
785
2024 count
Owner
State
State Highway Agency

About this bridge

SR4010 over Trib to Buffalo Creek is a concrete slab carrying SR4010 over Trib to Buffalo Creek in Armstrong County, Pennsylvania. It was built in 1925, so it is 100 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 785 vehicles a day, roughly 2% of them trucks, projected to reach 1,223 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR4010
CrossesTrib to Buffalo Creek
LocationWorthington NO.6
RouteState Highway 0
CountyArmstrong County
StatePennsylvania
Coordinates40.83993, -79.641
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length21 ft (6.4 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic785 (2024)
Projected traffic1,223 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$183,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR4010 over Trib to Buffalo Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is SR4010 over Trib to Buffalo Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does SR4010 over Trib to Buffalo Creek carry?

About 785 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR4010 over Trib to Buffalo Creek?

The structure is 21 ft (6.4 m) long with a longest span of 18 ft (5.5 m).

Who owns SR4010 over Trib to Buffalo Creek?

It is owned by the State Highway Agency.