US Bridges

6th ST & Grant ST over Marsh Run

Fair

Indiana County, Pennsylvania · Int of S 6th & Grant ST · Structure no. 000000000019533

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
780
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th ST & Grant ST over Marsh Run is a prestressed concrete slab carrying 6th ST & Grant ST over Marsh Run in Indiana County, Pennsylvania. It was built in 1961, so it is 64 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.

It carries about 780 vehicles a day, roughly 10% of them trucks, projected to reach 1,100 by 2044. The structure is 43 ft (13.1 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries6th ST & Grant ST
CrossesMarsh Run
LocationInt of S 6th & Grant ST
RouteCity Street 0
CountyIndiana County
StatePennsylvania
Coordinates40.61581, -79.15113
Functional classUrban 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating110.1 US tons
Inventory rating68 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2024)
Projected traffic1,100 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$24,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6th ST & Grant ST over Marsh Run built?

It was built in 1961, making it 64 years old in 2025.

What condition is 6th ST & Grant ST over Marsh 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 May 2024.

How much traffic does 6th ST & Grant ST over Marsh Run carry?

About 780 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 6th ST & Grant ST over Marsh Run?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 26 ft wide.

Who owns 6th ST & Grant ST over Marsh Run?

It is owned by the City or Municipal Highway Agency.