US Bridges

Maple Spring DR over Catfish Run

PoorPosted for load

Allegheny County, Pennsylvania · CT05 Catfish Run No. 5 · Structure no. 000000000002370

Built
1936
89 years old
Condition
Poor
inspected November 2023
Type
Arch - Deck
Steel
Length
20 ft
1 main span
Daily traffic
6,959
2005 count
Owner
County
County Highway Agency

About this bridge

Maple Spring DR over Catfish Run is a steel arch - deck carrying Maple Spring DR over Catfish Run in Allegheny County, Pennsylvania. It was built in 1936, so it is 89 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. Its operating status is: posted for load restriction.

It carries about 6,959 vehicles a day, roughly 10% of them trucks, projected to reach 7,700 by 2025. The structure is 20 ft (6.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMaple Spring DR
CrossesCatfish Run
LocationCT05 Catfish Run No. 5
RouteCounty Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.31551, -80.00584
Functional classUrban Local

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
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width40 ft (12.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,959 (2005)
Projected traffic7,700 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$83,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Maple Spring DR over Catfish Run built?

It was built in 1936, making it 89 years old in 2025.

What condition is Maple Spring DR over Catfish Run 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 November 2023.

How much traffic does Maple Spring DR over Catfish Run carry?

About 6,959 vehicles per day (2005 count), of which roughly 10% are trucks.

How long is Maple Spring DR over Catfish Run?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 40 ft wide.

Who owns Maple Spring DR over Catfish Run?

It is owned by the County Highway Agency.