US Bridges

Scott RD over Montour Run

Good

Allegheny County, Pennsylvania · MT06 Montour Run No. 6 · Structure no. 000000000002330

Built
1889
136 years old, rebuilt 2012
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
1 main span
Daily traffic
650
2010 count
Owner
County
County Highway Agency

About this bridge

Scott RD over Montour Run is a steel stringer/multi-beam or girder carrying Scott RD over Montour Run in Allegheny County, Pennsylvania. It was built in 1889 and reconstructed in 2012, so it is 136 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 650 vehicles a day, roughly 10% of them trucks, projected to reach 650 by 2030. The structure is 53 ft (16.2 m) long and 23 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesScott RD
CrossesMontour Run
LocationMT06 Montour Run No. 6
RouteCounty Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.45655, -80.17587
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
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 rating110 US tons
Inventory rating66 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span48 ft (14.6 m)
Deck width23 ft (6.9 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2010)
Projected traffic650 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$177,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Scott RD over Montour Run built?

It was built in 1889, making it 136 years old in 2025. It was reconstructed in 2012.

What condition is Scott RD over Montour Run 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 April 2023.

How much traffic does Scott RD over Montour Run carry?

About 650 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Scott RD over Montour Run?

The structure is 53 ft (16.2 m) long with a longest span of 48 ft (14.6 m) and a deck 23 ft wide.

Who owns Scott RD over Montour Run?

It is owned by the County Highway Agency.