US Bridges

SR 58 E Main Ext over Over Swamp Run Branch

Fair

Mercer County, Pennsylvania · Pine Township · Structure no. 000000000025681

Built
1955
70 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
45 ft
1 main span
Daily traffic
3,762
2024 count
Owner
State
State Highway Agency

About this bridge

SR 58 E Main Ext over Over Swamp Run Branch is a concrete tee beam carrying SR 58 E Main Ext over Over Swamp Run Branch in Mercer County, Pennsylvania. It was built in 1955, so it is 70 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 5 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 3,762 vehicles a day, roughly 13% of them trucks, projected to reach 5,226 by 2032. The structure is 45 ft (13.7 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 58 E Main Ext
CrossesOver Swamp Run Branch
LocationPine Township
RouteState Highway 58
CountyMercer County
StatePennsylvania
Coordinates41.14342, -80.0581
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width37 ft (11.3 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,762 (2024)
Projected traffic5,226 by 2032
Trucks13%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$144,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 58 E Main Ext over Over Swamp Run Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is SR 58 E Main Ext over Over Swamp Run Branch 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 March 2024.

How much traffic does SR 58 E Main Ext over Over Swamp Run Branch carry?

About 3,762 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR 58 E Main Ext over Over Swamp Run Branch?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 37 ft wide.

Who owns SR 58 E Main Ext over Over Swamp Run Branch?

It is owned by the State Highway Agency.