US Bridges

Monrv-Turtl Crk RD over Turtle Creek Branch

Fair

Allegheny County, Pennsylvania · TL11 Turtle Creek No 11 · Structure no. 000000000002639

Built
1990
35 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
7,700
2021 count
Owner
County
County Highway Agency

About this bridge

Monrv-Turtl Crk RD over Turtle Creek Branch is a concrete slab carrying Monrv-Turtl Crk RD over Turtle Creek Branch in Allegheny County, Pennsylvania. It was built in 1990, so it is 35 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 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 7,700 vehicles a day, roughly 2% of them trucks, projected to reach 8,262 by 2041. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMonrv-Turtl Crk RD
CrossesTurtle Creek Branch
LocationTL11 Turtle Creek No 11
RouteCounty Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.41521, -79.80136
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2021)
Projected traffic8,262 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$49,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Monrv-Turtl Crk RD over Turtle Creek Branch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Monrv-Turtl Crk RD over Turtle Creek Branch 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 Monrv-Turtl Crk RD over Turtle Creek Branch carry?

About 7,700 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Monrv-Turtl Crk RD over Turtle Creek Branch?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Monrv-Turtl Crk RD over Turtle Creek Branch?

It is owned by the County Highway Agency.