US Bridges

Monrv-Turtl Crk RD over Turtle Creek Branch

Good

Allegheny County, Pennsylvania · TL12 Turtle Creek No 12 · Structure no. 000000000002640

Built
1990
35 years old
Condition
Good
inspected July 2023
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
7,700
2005 count
Owner
County
County Highway Agency

About this bridge

Monrv-Turtl Crk RD over Turtle Creek Branch is a concrete frame 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,700 vehicles a day, roughly 2% of them trucks, projected to reach 8,262 by 2025. The structure is 22 ft (6.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMonrv-Turtl Crk RD
CrossesTurtle Creek Branch
LocationTL12 Turtle Creek No 12
RouteCounty Highway 0
Coordinates40.41585, -79.80004
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2005)
Projected traffic8,262 by 2025
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 proposedNone recorded
Estimated improvement cost—
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 good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Monrv-Turtl Crk RD over Turtle Creek Branch carry?

About 7,700 vehicles per day (2005 count), of which roughly 2% are trucks.

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

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

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

It is owned by the County Highway Agency.