US Bridges

Monon Road over Beckets Run

Good

Allegheny County, Pennsylvania · 100 SW of Twp RD 636 · Structure no. 000000000046915

Built
2011
14 years old
Condition
Good
inspected January 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
4,603
2024 count
Owner
State
State Highway Agency

About this bridge

Monon Road over Beckets Run is a prestressed concrete stringer/multi-beam or girder carrying Monon Road over Beckets Run in Allegheny County, Pennsylvania. It was built in 2011, so it is 14 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 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 4,603 vehicles a day, roughly 7% of them trucks, projected to reach 5,000 by 2037. The structure is 37 ft (11.3 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMonon Road
CrossesBeckets Run
Location100 SW of Twp RD 636
RouteState Highway 136
CountyAllegheny County
StatePennsylvania
Coordinates40.20097, -79.86565
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,603 (2024)
Projected traffic5,000 by 2037
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 Monon Road over Beckets Run built?

It was built in 2011, making it 14 years old in 2025.

What condition is Monon Road over Beckets 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 January 2022.

How much traffic does Monon Road over Beckets Run carry?

About 4,603 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Monon Road over Beckets Run?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 43 ft wide.

Who owns Monon Road over Beckets Run?

It is owned by the State Highway Agency.