US Bridges

SR 58 S.Diamond ST over Over Munnell Run

Good

Mercer County, Pennsylvania · Coolspring Township · Structure no. 000000000025675

Built
1959
66 years old
Condition
Good
inspected March 2024
Type
Tee Beam
Concrete
Length
29 ft
1 main span
Daily traffic
3,660
2023 count
Owner
State
State Highway Agency

About this bridge

SR 58 S.Diamond ST over Over Munnell Run is a concrete tee beam carrying SR 58 S.Diamond ST over Over Munnell Run in Mercer County, Pennsylvania. It was built in 1959, so it is 66 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 3,660 vehicles a day, roughly 10% of them trucks, projected to reach 4,918 by 2032. The structure is 29 ft (8.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 58 S.Diamond ST
CrossesOver Munnell Run
LocationCoolspring Township
RouteState Highway 58
CountyMercer County
StatePennsylvania
Coordinates41.23803, -80.24326
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width44 ft (13.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,660 (2023)
Projected traffic4,918 by 2032
Trucks10%
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 58 S.Diamond ST over Over Munnell Run built?

It was built in 1959, making it 66 years old in 2025.

What condition is SR 58 S.Diamond ST over Over Munnell 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 March 2024.

How much traffic does SR 58 S.Diamond ST over Over Munnell Run carry?

About 3,660 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 58 S.Diamond ST over Over Munnell Run?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 44 ft wide.

Who owns SR 58 S.Diamond ST over Over Munnell Run?

It is owned by the State Highway Agency.