US Bridges

T-371-BLACK Log RD over Black Log Creek

Fair

Juniata County, Pennsylvania · 4.5 MI SW of SR 4005 · Structure no. 000000000020338

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
200
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-371-BLACK Log RD over Black Log Creek is a prestressed concrete box beam or girders - multiple carrying T-371-BLACK Log RD over Black Log Creek in Juniata County, Pennsylvania. It was built in 1972, so it is 53 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 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 280 by 2031. The structure is 44 ft (13.4 m) long and 27 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesT-371-BLACK Log RD
CrossesBlack Log Creek
Location4.5 MI SW of SR 4005
RouteCity Street 0
Coordinates40.37479, -77.73721
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2011)
Projected traffic280 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-371-BLACK Log RD over Black Log Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is T-371-BLACK Log RD over Black Log 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 October 2023.

How much traffic does T-371-BLACK Log RD over Black Log Creek carry?

About 200 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is T-371-BLACK Log RD over Black Log Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 27 ft wide.

Who owns T-371-BLACK Log RD over Black Log Creek?

It is owned by the Town or Township Highway Agency.