US Bridges

SR 18 Sharon Road over Over Shenango River

Good

Mercer County, Pennsylvania · Clark Borough · Structure no. 000000000025633

Built
1966
59 years old, rebuilt 2014
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
427 ft
3 main spans
Daily traffic
10,243
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 Sharon Road over Over Shenango River is a steel continuous stringer/multi-beam or girder carrying SR 18 Sharon Road over Over Shenango River in Mercer County, Pennsylvania. It was built in 1966 and reconstructed in 2014, so it is 59 years old, older 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 10,243 vehicles a day, roughly 7% of them trucks, projected to reach 13,246 by 2032. The structure is 427 ft (130.1 m) long and 60 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR 18 Sharon Road
CrossesOver Shenango River
LocationClark Borough
RouteState Highway 18
CountyMercer County
StatePennsylvania
Coordinates41.28688, -80.4281
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 41 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length427 ft (130.1 m)
Longest span168 ft (51.2 m)
Deck width60 ft (18.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,243 (2023)
Projected traffic13,246 by 2032
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 Sharon Road over Over Shenango River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2014.

What condition is SR 18 Sharon Road over Over Shenango River 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 April 2023.

How much traffic does SR 18 Sharon Road over Over Shenango River carry?

About 10,243 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 18 Sharon Road over Over Shenango River?

The structure is 427 ft (130.1 m) long with a longest span of 168 ft (51.2 m) and a deck 60 ft wide.

Who owns SR 18 Sharon Road over Over Shenango River?

It is owned by the State Highway Agency.