US Bridges

T-617 Love Road over Thorn Reservoir

Fair

Butler County, Pennsylvania · 0.9 MI West of SR 1011 · Structure no. 000000000008271

Built
1978
47 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
300
2015 count
Owner
County
County Highway Agency

About this bridge

T-617 Love Road over Thorn Reservoir is a prestressed concrete box beam or girders - multiple carrying T-617 Love Road over Thorn Reservoir in Butler County, Pennsylvania. It was built in 1978, so it is 47 years old, younger 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 6 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 300 vehicles a day, roughly 9% of them trucks, projected to reach 325 by 2035. The structure is 38 ft (11.6 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesT-617 Love Road
CrossesThorn Reservoir
Location0.9 MI West of SR 1011
RouteCity Street 0
Coordinates40.9023, -79.86417
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating65 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2015)
Projected traffic325 by 2035
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 T-617 Love Road over Thorn Reservoir built?

It was built in 1978, making it 47 years old in 2025.

What condition is T-617 Love Road over Thorn Reservoir 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 September 2024.

How much traffic does T-617 Love Road over Thorn Reservoir carry?

About 300 vehicles per day (2015 count), of which roughly 9% are trucks.

How long is T-617 Love Road over Thorn Reservoir?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns T-617 Love Road over Thorn Reservoir?

It is owned by the County Highway Agency.