US Bridges

T798 Number 1 Road over Laurel Run

FairPosted for load

Somerset County, Pennsylvania · .2 Mi.N.Of Central City · Structure no. 000000000031891

Built
1917
108 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
34 ft
1 main span
Daily traffic
70
2024 count
Owner
County
County Highway Agency

About this bridge

T798 Number 1 Road over Laurel Run is a concrete arch - deck carrying T798 Number 1 Road over Laurel Run in Somerset County, Pennsylvania. It was built in 1917, so it is 108 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 70 vehicles a day, projected to reach 88 by 2044. The structure is 34 ft (10.4 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesT798 Number 1 Road
CrossesLaurel Run
Location.2 Mi.N.Of Central City
RouteCity Street 0
CountySomerset County
StatePennsylvania
Coordinates40.1169, -78.80447
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width18 ft (5.4 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2024)
Projected traffic88 by 2044
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$660,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T798 Number 1 Road over Laurel Run built?

It was built in 1917, making it 108 years old in 2025.

What condition is T798 Number 1 Road over Laurel Run 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 April 2023.

How much traffic does T798 Number 1 Road over Laurel Run carry?

About 70 vehicles per day (2024 count).

How long is T798 Number 1 Road over Laurel Run?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 18 ft wide.

Who owns T798 Number 1 Road over Laurel Run?

It is owned by the County Highway Agency.