US Bridges

Old Leechburg Road over Br.Little Plum Creek

Fair

Allegheny County, Pennsylvania · @ Int W/ SR 2075 · Structure no. 000000000001628

Built
1900
125 years old
Condition
Fair
inspected March 2024
Type
Arch - Deck
Masonry
Length
20 ft
1 main span
Daily traffic
4,508
2024 count
Owner
State
State Highway Agency

About this bridge

Old Leechburg Road over Br.Little Plum Creek is a masonry arch - deck carrying Old Leechburg Road over Br.Little Plum Creek in Allegheny County, Pennsylvania. It was built in 1900, so it is 125 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 4,508 vehicles a day, roughly 6% of them trucks, projected to reach 4,758 by 2032. The structure is 20 ft (6.1 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOld Leechburg Road
CrossesBr.Little Plum Creek
Location@ Int W/ SR 2075
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.49656, -79.7534
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span12 ft (3.7 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,508 (2024)
Projected traffic4,758 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Leechburg Road over Br.Little Plum Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is Old Leechburg Road over Br.Little Plum Creek 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 March 2024.

How much traffic does Old Leechburg Road over Br.Little Plum Creek carry?

About 4,508 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Old Leechburg Road over Br.Little Plum Creek?

The structure is 20 ft (6.1 m) long with a longest span of 12 ft (3.7 m) and a deck 24 ft wide.

Who owns Old Leechburg Road over Br.Little Plum Creek?

It is owned by the State Highway Agency.