US Bridges

Frew Mill Road over Slippery Rock Creek

Good

Lawrence County, Pennsylvania · 1.0 MI W of SR 0019 · Structure no. 000000000044235

Built
2007
18 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
1 main span
Daily traffic
305
2023 count
Owner
State
State Highway Agency

About this bridge

Frew Mill Road over Slippery Rock Creek is a steel stringer/multi-beam or girder carrying Frew Mill Road over Slippery Rock Creek in Lawrence County, Pennsylvania. It was built in 2007, so it is 18 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 305 vehicles a day, roughly 3% of them trucks, projected to reach 480 by 2032. The structure is 140 ft (42.7 m) long and 27 ft wide.

CarriesFrew Mill Road
CrossesSlippery Rock Creek
Location1.0 MI W of SR 0019
RouteState Highway 0
Coordinates40.99188, -80.1844
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating78 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span135 ft (41.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic305 (2023)
Projected traffic480 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Frew Mill Road over Slippery Rock Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Frew Mill Road over Slippery Rock Creek 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 August 2024.

How much traffic does Frew Mill Road over Slippery Rock Creek carry?

About 305 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Frew Mill Road over Slippery Rock Creek?

The structure is 140 ft (42.7 m) long with a longest span of 135 ft (41.1 m) and a deck 27 ft wide.

Who owns Frew Mill Road over Slippery Rock Creek?

It is owned by the State Highway Agency.