US Bridges

T-360 Peterson RD over Blacklog Creek

FairPosted for load

Huntingdon County, Pennsylvania · 2 Mi.Se.Of Orbisonia · Structure no. 000000000018911

Built
1930
95 years old, rebuilt 1991
Condition
Fair
inspected December 2022
Type
Girder and Floorbeam System
Steel
Length
44 ft
1 main span
Daily traffic
5
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-360 Peterson RD over Blacklog Creek is a steel girder and floorbeam system carrying T-360 Peterson RD over Blacklog Creek in Huntingdon County, Pennsylvania. It was built in 1930 and reconstructed in 1991, so it is 95 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. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, roughly 1% of them trucks, projected to reach 6 by 2044. The structure is 44 ft (13.4 m) long and 14 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT-360 Peterson RD
CrossesBlacklog Creek
Location2 Mi.Se.Of Orbisonia
RouteCity Street 0
Coordinates40.23166, -77.86322
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating32 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadH 10
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$757,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-360 Peterson RD over Blacklog Creek built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1991.

What condition is T-360 Peterson RD over Blacklog 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 2022.

How much traffic does T-360 Peterson RD over Blacklog Creek carry?

About 5 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is T-360 Peterson RD over Blacklog Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 14 ft wide.

Who owns T-360 Peterson RD over Blacklog Creek?

It is owned by the Town or Township Highway Agency.