US Bridges

T-381 Brandon RD over Black Run

Fair

Butler County, Pennsylvania · 0.4 MI NE of T-320 · Structure no. 000000000008302

Built
1920
105 years old, rebuilt 2010
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
100
2017 count
Owner
County
County Highway Agency

About this bridge

T-381 Brandon RD over Black Run is a steel stringer/multi-beam or girder carrying T-381 Brandon RD over Black Run in Butler County, Pennsylvania. It was built in 1920 and reconstructed in 2010, so it is 105 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 100 vehicles a day, roughly 9% of them trucks, projected to reach 120 by 2037. The structure is 41 ft (12.5 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT-381 Brandon RD
CrossesBlack Run
Location0.4 MI NE of T-320
RouteCity Street 0
CountyButler County
StatePennsylvania
Coordinates41.02468, -80.13025
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating98.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic120 by 2037
Trucks9%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$324,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-381 Brandon RD over Black Run built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2010.

What condition is T-381 Brandon RD over Black 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 October 2023.

How much traffic does T-381 Brandon RD over Black Run carry?

About 100 vehicles per day (2017 count), of which roughly 9% are trucks.

How long is T-381 Brandon RD over Black Run?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 17 ft wide.

Who owns T-381 Brandon RD over Black Run?

It is owned by the County Highway Agency.