US Bridges

Troy Hill RD over Hillside

Fair

Allegheny County, Pennsylvania · 114 Troy Hill Road · Structure no. 000000000002460

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
1,000
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Troy Hill RD over Hillside is a concrete continuous slab carrying Troy Hill RD over Hillside in Allegheny County, Pennsylvania. It was built in 1965, so it is 60 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 11,000 by 2040. The structure is 52 ft (15.8 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTroy Hill RD
CrossesHillside
Location114 Troy Hill Road
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.458, -79.98798
Functional classUrban 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.
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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span19 ft (5.8 m)
Deck width23 ft (6.9 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic11,000 by 2040
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$71,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Troy Hill RD over Hillside built?

It was built in 1965, making it 60 years old in 2025.

What condition is Troy Hill RD over Hillside 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 Troy Hill RD over Hillside carry?

About 1,000 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Troy Hill RD over Hillside?

The structure is 52 ft (15.8 m) long with a longest span of 19 ft (5.8 m) and a deck 23 ft wide.

Who owns Troy Hill RD over Hillside?

It is owned by the City or Municipal Highway Agency.