US Bridges

Homeville RD over Union RR Grant Thmps Run

Fair

Allegheny County, Pennsylvania · TS05 Homeville RD Viadt · Structure no. 000000000002714

Built
1954
71 years old, rebuilt 2016
Condition
Fair
inspected November 2022
Type
Truss - Deck
Steel
Length
779 ft
1 main span
Daily traffic
12,897
2005 count
Owner
County
County Highway Agency

About this bridge

Homeville RD over Union RR Grant Thmps Run is a steel truss - deck carrying Homeville RD over Union RR Grant Thmps Run in Allegheny County, Pennsylvania. It was built in 1954 and reconstructed in 2016, so it is 71 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 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 12,897 vehicles a day, roughly 6% of them trucks, projected to reach 14,200 by 2022. The structure is 779 ft (237.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHomeville RD
CrossesUnion RR Grant Thmps Run
LocationTS05 Homeville RD Viadt
RouteCounty Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.37215, -79.87333
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating42.1 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadHL 93
Structure length779 ft (237.4 m)
Longest span215 ft (65.5 m)
Deck width35 ft (10.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,897 (2005)
Projected traffic14,200 by 2022
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$599,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Homeville RD over Union RR Grant Thmps Run built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2016.

What condition is Homeville RD over Union RR Grant Thmps Run 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 November 2022.

How much traffic does Homeville RD over Union RR Grant Thmps Run carry?

About 12,897 vehicles per day (2005 count), of which roughly 6% are trucks.

How long is Homeville RD over Union RR Grant Thmps Run?

The structure is 779 ft (237.4 m) long with a longest span of 215 ft (65.5 m) and a deck 35 ft wide.

Who owns Homeville RD over Union RR Grant Thmps Run?

It is owned by the County Highway Agency.