US Bridges

T-374 (cty Br 21) over Buffalo Creek

Good

Union County, Pennsylvania · 1.5 M.E.Of Pleasant Grove · Structure no. 000000000068837

Built
2021
4 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
110
2023 count
Owner
County
County Highway Agency

About this bridge

T-374 (cty Br 21) over Buffalo Creek is a prestressed concrete box beam or girders - multiple carrying T-374 (cty Br 21) over Buffalo Creek in Union County, Pennsylvania. It was built in 2021, so it is 4 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 110 vehicles a day, roughly 1% of them trucks, projected to reach 170 by 2045. The structure is 52 ft (15.8 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesT-374 (cty Br 21)
CrossesBuffalo Creek
Location1.5 M.E.Of Pleasant Grove
RouteCity Street 0
CountyUnion County
StatePennsylvania
Coordinates40.91969, -77.10097
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2023)
Projected traffic170 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-374 (cty Br 21) over Buffalo Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is T-374 (cty Br 21) over Buffalo Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does T-374 (cty Br 21) over Buffalo Creek carry?

About 110 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T-374 (cty Br 21) over Buffalo Creek?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns T-374 (cty Br 21) over Buffalo Creek?

It is owned by the County Highway Agency.