US Bridges

SR 4009 Mosiertown over Over SR 79 Nb/Sb

Fair

Crawford County, Pennsylvania · Hayfield Township · Structure no. 000000000013355

Built
1969
56 years old, rebuilt 2009
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
408 ft
6 main spans
Daily traffic
1,270
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4009 Mosiertown over Over SR 79 Nb/Sb is a prestressed concrete stringer/multi-beam or girder carrying SR 4009 Mosiertown over Over SR 79 Nb/Sb in Crawford County, Pennsylvania. It was built in 1969 and reconstructed in 2009, so it is 56 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 1,270 vehicles a day, roughly 6% of them trucks, projected to reach 1,570 by 2032. The structure is 408 ft (124.4 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 4009 Mosiertown
CrossesOver SR 79 Nb/Sb
LocationHayfield Township
RouteState Highway 0
CountyCrawford County
StatePennsylvania
Coordinates41.69928, -80.20022
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length408 ft (124.4 m)
Longest span84 ft (25.6 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,270 (2024)
Projected traffic1,570 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 4009 Mosiertown over Over SR 79 Nb/Sb built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2009.

What condition is SR 4009 Mosiertown over Over SR 79 Nb/Sb 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 2023.

How much traffic does SR 4009 Mosiertown over Over SR 79 Nb/Sb carry?

About 1,270 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 4009 Mosiertown over Over SR 79 Nb/Sb?

The structure is 408 ft (124.4 m) long with a longest span of 84 ft (25.6 m) and a deck 34 ft wide.

Who owns SR 4009 Mosiertown over Over SR 79 Nb/Sb?

It is owned by the State Highway Agency.