US Bridges

T-573 Wylie Road over Rocky Run

Good

Butler County, Pennsylvania · Int With SR 2007 · Structure no. 000000000068536

Built
2021
4 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
200
2018 count
Owner
County
County Highway Agency

About this bridge

T-573 Wylie Road over Rocky Run is a concrete culvert carrying T-573 Wylie Road over Rocky Run in Butler County, Pennsylvania. It was built in 2021, so it is 4 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 200 vehicles a day, roughly 9% of them trucks, projected to reach 225 by 2038. The structure is 28 ft (8.5 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT-573 Wylie Road
CrossesRocky Run
LocationInt With SR 2007
RouteCity Street 0
Coordinates40.69953, -79.84564
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width27 ft (8.1 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2018)
Projected traffic225 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-573 Wylie Road over Rocky Run built?

It was built in 2021, making it 4 years old in 2025.

What condition is T-573 Wylie Road over Rocky 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 October 2023.

How much traffic does T-573 Wylie Road over Rocky Run carry?

About 200 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is T-573 Wylie Road over Rocky Run?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 27 ft wide.

Who owns T-573 Wylie Road over Rocky Run?

It is owned by the County Highway Agency.