US Bridges

Pa 731 over I-70

Fair

Fulton County, Pennsylvania · Over I-70 at Amaranth · Structure no. 000000000017862

Built
1960
65 years old, rebuilt 2009
Condition
Fair
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
184 ft
4 main spans
Daily traffic
257
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 731 over I-70 is a prestressed concrete box beam or girders - multiple carrying Pa 731 over I-70 in Fulton County, Pennsylvania. It was built in 1960 and reconstructed in 2009, so it is 65 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 6 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 257 vehicles a day, roughly 5% of them trucks, projected to reach 306 by 2032. The structure is 184 ft (56.1 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesPa 731
CrossesI-70
LocationOver I-70 at Amaranth
RouteState Highway 731
CountyFulton County
StatePennsylvania
Coordinates39.79886, -78.24566
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating44 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length184 ft (56.1 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic257 (2023)
Projected traffic306 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa 731 over I-70 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2009.

What condition is Pa 731 over I-70 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 June 2022.

How much traffic does Pa 731 over I-70 carry?

About 257 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Pa 731 over I-70?

The structure is 184 ft (56.1 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns Pa 731 over I-70?

It is owned by the State Highway Agency.