US Bridges

T-378 Seghis RD over Mountain Creek Trib

Poor

Fayette County, Pennsylvania · 350 Ft SE of SR 3007 · Structure no. 000000000017077

Built
1985
40 years old
Condition
Poor
inspected March 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
225
2012 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-378 Seghis RD over Mountain Creek Trib is a prestressed concrete slab carrying T-378 Seghis RD over Mountain Creek Trib in Fayette County, Pennsylvania. It was built in 1985, so it is 40 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 225 vehicles a day, projected to reach 315 by 2032. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT-378 Seghis RD
CrossesMountain Creek Trib
Location350 Ft SE of SR 3007
RouteCity Street 0T378
CountyFayette County
StatePennsylvania
Coordinates39.77901, -79.79208
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2012)
Projected traffic315 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-378 Seghis RD over Mountain Creek Trib built?

It was built in 1985, making it 40 years old in 2025.

What condition is T-378 Seghis RD over Mountain Creek Trib in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does T-378 Seghis RD over Mountain Creek Trib carry?

About 225 vehicles per day (2012 count).

How long is T-378 Seghis RD over Mountain Creek Trib?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns T-378 Seghis RD over Mountain Creek Trib?

It is owned by the Town or Township Highway Agency.