US Bridges

SR 18 College Ave. over Over Little Shenango R

Good

Mercer County, Pennsylvania · Greenville Borough · Structure no. 000000000025638

Built
1986
39 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
5,803
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 College Ave. over Over Little Shenango R is a prestressed concrete stringer/multi-beam or girder carrying SR 18 College Ave. over Over Little Shenango R in Mercer County, Pennsylvania. It was built in 1986, so it is 39 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 5,803 vehicles a day, roughly 10% of them trucks, projected to reach 9,084 by 2032. The structure is 105 ft (32 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 18 College Ave.
CrossesOver Little Shenango R
LocationGreenville Borough
RouteState Highway 18
CountyMercer County
StatePennsylvania
Coordinates41.40931, -80.38452
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span101 ft (30.8 m)
Deck width44 ft (13.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,803 (2023)
Projected traffic9,084 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 18 College Ave. over Over Little Shenango R built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR 18 College Ave. over Over Little Shenango R 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 2024.

How much traffic does SR 18 College Ave. over Over Little Shenango R carry?

About 5,803 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 18 College Ave. over Over Little Shenango R?

The structure is 105 ft (32 m) long with a longest span of 101 ft (30.8 m) and a deck 44 ft wide.

Who owns SR 18 College Ave. over Over Little Shenango R?

It is owned by the State Highway Agency.