US Bridges

Mosside Blvd over Norfolksouth Turtle Crk

Good

Allegheny County, Pennsylvania · W of Pitcarin@sr 130 Int · Structure no. 000000000044275

Built
2007
18 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
509 ft
2 main spans
Daily traffic
6,555
2024 count
Owner
State
State Highway Agency

About this bridge

Mosside Blvd over Norfolksouth Turtle Crk is a steel continuous stringer/multi-beam or girder carrying Mosside Blvd over Norfolksouth Turtle Crk in Allegheny County, Pennsylvania. It was built in 2007, so it is 18 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 6,555 vehicles a day, roughly 12% of them trucks, projected to reach 8,788 by 2043. The structure is 509 ft (155.1 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMosside Blvd
CrossesNorfolksouth Turtle Crk
LocationW of Pitcarin@sr 130 Int
RouteState Highway 48
Coordinates40.39545, -79.77272
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length509 ft (155.1 m)
Longest span260 ft (79.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,555 (2024)
Projected traffic8,788 by 2043
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mosside Blvd over Norfolksouth Turtle Crk built?

It was built in 2007, making it 18 years old in 2025.

What condition is Mosside Blvd over Norfolksouth Turtle Crk 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 January 2023.

How much traffic does Mosside Blvd over Norfolksouth Turtle Crk carry?

About 6,555 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mosside Blvd over Norfolksouth Turtle Crk?

The structure is 509 ft (155.1 m) long with a longest span of 260 ft (79.2 m) and a deck 35 ft wide.

Who owns Mosside Blvd over Norfolksouth Turtle Crk?

It is owned by the State Highway Agency.