US Bridges

T510 Marra Road over Clearfield Creek

Fair

Cambria County, Pennsylvania · 1 MI N of Dysart · Structure no. 000000000041289

Built
2001
24 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

T510 Marra Road over Clearfield Creek is a prestressed concrete box beam or girders - multiple carrying T510 Marra Road over Clearfield Creek in Cambria County, Pennsylvania. It was built in 2001, so it is 24 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 5 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 50 vehicles a day, roughly 1% of them trucks, projected to reach 625 by 2043. The structure is 104 ft (31.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT510 Marra Road
CrossesClearfield Creek
Location1 MI N of Dysart
RouteCity Street 0
CountyCambria County
StatePennsylvania
Coordinates40.60747, -78.51327
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length104 ft (31.7 m)
Longest span102 ft (31.1 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic625 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T510 Marra Road over Clearfield Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is T510 Marra Road over Clearfield 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 July 2023.

How much traffic does T510 Marra Road over Clearfield Creek carry?

About 50 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T510 Marra Road over Clearfield Creek?

The structure is 104 ft (31.7 m) long with a longest span of 102 ft (31.1 m) and a deck 29 ft wide.

Who owns T510 Marra Road over Clearfield Creek?

It is owned by the County Highway Agency.