US Bridges

Ltl Deer Creek RD over Little Deer Creek

Poor

Allegheny County, Pennsylvania · 1 Mi.North of SR 1016 · Structure no. 000000000001426

Built
1939
86 years old, rebuilt 2020
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
3,495
2024 count
Owner
State
State Highway Agency

About this bridge

Ltl Deer Creek RD over Little Deer Creek is a steel stringer/multi-beam or girder carrying Ltl Deer Creek RD over Little Deer Creek in Allegheny County, Pennsylvania. It was built in 1939 and reconstructed in 2020, so it is 86 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,495 vehicles a day, roughly 4% of them trucks, projected to reach 3,962 by 2032. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLtl Deer Creek RD
CrossesLittle Deer Creek
Location1 Mi.North of SR 1016
RouteState Highway 0
Coordinates40.59192, -79.83079
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width32 ft (9.7 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,495 (2024)
Projected traffic3,962 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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$170,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ltl Deer Creek RD over Little Deer Creek built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2020.

What condition is Ltl Deer Creek RD over Little Deer Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Ltl Deer Creek RD over Little Deer Creek carry?

About 3,495 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Ltl Deer Creek RD over Little Deer Creek?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 32 ft wide.

Who owns Ltl Deer Creek RD over Little Deer Creek?

It is owned by the State Highway Agency.