US Bridges

T-529 Downieville over Breakneck Creek

Fair

Butler County, Pennsylvania · 180 Ft E of SR 3015 · Structure no. 000000000008161

Built
1986
39 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
1,150
2015 count
Owner
County
County Highway Agency

About this bridge

T-529 Downieville over Breakneck Creek is a prestressed concrete slab carrying T-529 Downieville over Breakneck Creek in Butler County, Pennsylvania. It was built in 1986, so it is 39 years old, younger 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 1,150 vehicles a day, roughly 9% of them trucks, projected to reach 1,200 by 2035. The structure is 27 ft (8.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesT-529 Downieville
CrossesBreakneck Creek
Location180 Ft E of SR 3015
RouteCity Street 0
CountyButler County
StatePennsylvania
Coordinates40.68056, -80.0002
Functional classUrban 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2015)
Projected traffic1,200 by 2035
Trucks9%
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

OwnerCounty Highway Agency
Maintained byCounty 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 T-529 Downieville over Breakneck Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is T-529 Downieville over Breakneck 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 November 2023.

How much traffic does T-529 Downieville over Breakneck Creek carry?

About 1,150 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is T-529 Downieville over Breakneck Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns T-529 Downieville over Breakneck Creek?

It is owned by the County Highway Agency.