US Bridges

Rombold Road over Bobby Run

Fair

Mercer County, Pennsylvania · 3/4-MI East of Rt 418 · Structure no. 000000000026330

Built
1958
67 years old, rebuilt 1998
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
867
2024 count
Owner
County
County Highway Agency

About this bridge

Rombold Road over Bobby Run is a prestressed concrete box beam or girders - multiple carrying Rombold Road over Bobby Run in Mercer County, Pennsylvania. It was built in 1958 and reconstructed in 1998, so it is 67 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 6 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 867 vehicles a day, roughly 4% of them trucks, projected to reach 1,480 by 2038. The structure is 37 ft (11.3 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRombold Road
CrossesBobby Run
Location3/4-MI East of Rt 418
RouteCity Street 7303
Coordinates41.21528, -80.46328
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic867 (2024)
Projected traffic1,480 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Rombold Road over Bobby Run built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1998.

What condition is Rombold Road over Bobby Run 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 September 2024.

How much traffic does Rombold Road over Bobby Run carry?

About 867 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Rombold Road over Bobby Run?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 29 ft wide.

Who owns Rombold Road over Bobby Run?

It is owned by the County Highway Agency.