US Bridges

Lincoln RD over Shades Run

Fair

Allegheny County, Pennsylvania · SD03 Shades Run Br # 3 · Structure no. 000000000002174

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
399 ft
3 main spans
Daily traffic
3,766
2005 count
Owner
County
County Highway Agency

About this bridge

Lincoln RD over Shades Run is a steel continuous stringer/multi-beam or girder carrying Lincoln RD over Shades Run in Allegheny County, Pennsylvania. It was built in 1987, so it is 38 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 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 3,766 vehicles a day, roughly 5% of them trucks, projected to reach 4,800 by 2024. The structure is 399 ft (121.6 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLincoln RD
CrossesShades Run
LocationSD03 Shades Run Br # 3
RouteCounty Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.47454, -79.88165
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length399 ft (121.6 m)
Longest span185 ft (56.4 m)
Deck width43 ft (13 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,766 (2005)
Projected traffic4,800 by 2024
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Lincoln RD over Shades Run built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lincoln RD over Shades 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 June 2023.

How much traffic does Lincoln RD over Shades Run carry?

About 3,766 vehicles per day (2005 count), of which roughly 5% are trucks.

How long is Lincoln RD over Shades Run?

The structure is 399 ft (121.6 m) long with a longest span of 185 ft (56.4 m) and a deck 43 ft wide.

Who owns Lincoln RD over Shades Run?

It is owned by the County Highway Agency.