US Bridges

Robertson Road over Golden Run

Poor

Mercer County, Pennsylvania · 3/4-MI North of Lamor RD · Structure no. 000000000026329

Built
1956
69 years old, rebuilt 2001
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
253
2024 count
Owner
County
County Highway Agency

About this bridge

Robertson Road over Golden Run is a steel stringer/multi-beam or girder carrying Robertson Road over Golden Run in Mercer County, Pennsylvania. It was built in 1956 and reconstructed in 2001, so it is 69 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 253 vehicles a day, roughly 4% of them trucks, projected to reach 520 by 2038. The structure is 23 ft (7 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRobertson Road
CrossesGolden Run
Location3/4-MI North of Lamor RD
RouteCity Street 7303
CountyMercer County
StatePennsylvania
Coordinates41.26177, -80.42223
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating98.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 25 or greater
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic253 (2024)
Projected traffic520 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Robertson Road over Golden Run built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2001.

What condition is Robertson Road over Golden Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Robertson Road over Golden Run carry?

About 253 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Robertson Road over Golden Run?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 27 ft wide.

Who owns Robertson Road over Golden Run?

It is owned by the County Highway Agency.