US Bridges

SR 642 over Ross Run

Fair

Northumberland County, Pennsylvania · Village of Pottsgrove · Structure no. 000000000029118

Built
1930
95 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
29 ft
1 main span
Daily traffic
1,899
2023 count
Owner
State
State Highway Agency

About this bridge

SR 642 over Ross Run is a concrete tee beam carrying SR 642 over Ross Run in Northumberland County, Pennsylvania. It was built in 1930, so it is 95 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 1,899 vehicles a day, roughly 8% of them trucks, projected to reach 2,612 by 2032. The structure is 29 ft (8.8 m) long and 34 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesSR 642
CrossesRoss Run
LocationVillage of Pottsgrove
RouteState Highway 642
CountyNorthumberland County
StatePennsylvania
Coordinates40.99309, -76.78581
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 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 rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,899 (2023)
Projected traffic2,612 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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$102,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 642 over Ross Run built?

It was built in 1930, making it 95 years old in 2025.

What condition is SR 642 over Ross 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 November 2023.

How much traffic does SR 642 over Ross Run carry?

About 1,899 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 642 over Ross Run?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns SR 642 over Ross Run?

It is owned by the State Highway Agency.