US Bridges

SR 155-PA 155 over Rock Run

Good

McKean County, Pennsylvania · 3 MI SE Larabee · Structure no. 000000000053926

Built
2017
8 years old
Condition
Good
inspected June 2023
Type
Other
Steel
Length
52 ft
1 main span
Daily traffic
2,131
2023 count
Owner
State
State Highway Agency

About this bridge

SR 155-PA 155 over Rock Run is a steel other carrying SR 155-PA 155 over Rock Run in McKean County, Pennsylvania. It was built in 2017, so it is 8 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,131 vehicles a day, roughly 11% of them trucks, projected to reach 2,519 by 2037. The structure is 52 ft (15.8 m) long and 42 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 155-PA 155
CrossesRock Run
Location3 MI SE Larabee
RouteState Highway 155
Coordinates41.87927, -78.34954
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating61.4 US tons

Structure

Structure typeOther
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length52 ft (15.8 m)
Longest span48 ft (14.6 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,131 (2023)
Projected traffic2,519 by 2037
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
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 SR 155-PA 155 over Rock Run built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR 155-PA 155 over Rock 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 June 2023.

How much traffic does SR 155-PA 155 over Rock Run carry?

About 2,131 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 155-PA 155 over Rock Run?

The structure is 52 ft (15.8 m) long with a longest span of 48 ft (14.6 m) and a deck 42 ft wide.

Who owns SR 155-PA 155 over Rock Run?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).