US Bridges

SR 846 Orngvlle.Rd over Big Run

Good

Mercer County, Pennsylvania · West Salem Township · Structure no. 000000000025899

Built
1989
36 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
741
2024 count
Owner
State
State Highway Agency

About this bridge

SR 846 Orngvlle.Rd over Big Run is a prestressed concrete box beam or girders - multiple carrying SR 846 Orngvlle.Rd over Big Run in Mercer County, Pennsylvania. It was built in 1989, so it is 36 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 741 vehicles a day, roughly 7% of them trucks, projected to reach 1,703 by 2032. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 846 Orngvlle.Rd
CrossesBig Run
LocationWest Salem Township
RouteState Highway 846
CountyMercer County
StatePennsylvania
Coordinates41.38404, -80.44105
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length78 ft (23.8 m)
Longest span75 ft (22.9 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic741 (2024)
Projected traffic1,703 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 846 Orngvlle.Rd over Big Run built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR 846 Orngvlle.Rd over Big Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does SR 846 Orngvlle.Rd over Big Run carry?

About 741 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 846 Orngvlle.Rd over Big Run?

The structure is 78 ft (23.8 m) long with a longest span of 75 ft (22.9 m) and a deck 32 ft wide.

Who owns SR 846 Orngvlle.Rd over Big Run?

It is owned by the State Highway Agency.