US Bridges

T-511 Mcmahon Rd. over Shaver Creek

Fair

Huntingdon County, Pennsylvania · 0.3 Mi.S.Of Cottage · Structure no. 000000000018951

Built
1977
48 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
43
2024 count
Owner
County
County Highway Agency

About this bridge

T-511 Mcmahon Rd. over Shaver Creek is a steel stringer/multi-beam or girder carrying T-511 Mcmahon Rd. over Shaver Creek in Huntingdon County, Pennsylvania. It was built in 1977, so it is 48 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 43 vehicles a day, roughly 1% of them trucks, projected to reach 55 by 2044. The structure is 65 ft (19.8 m) long and 18 ft wide.

Location

Open in Google Maps
CarriesT-511 Mcmahon Rd.
CrossesShaver Creek
Location0.3 Mi.S.Of Cottage
RouteCity Street 0
CountyHuntingdon County
StatePennsylvania
Coordinates40.6168, -77.98504
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span61 ft (18.6 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43 (2024)
Projected traffic55 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$927,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-511 Mcmahon Rd. over Shaver Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is T-511 Mcmahon Rd. over Shaver Creek 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 2024.

How much traffic does T-511 Mcmahon Rd. over Shaver Creek carry?

About 43 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is T-511 Mcmahon Rd. over Shaver Creek?

The structure is 65 ft (19.8 m) long with a longest span of 61 ft (18.6 m) and a deck 18 ft wide.

Who owns T-511 Mcmahon Rd. over Shaver Creek?

It is owned by the County Highway Agency.