US Bridges

T611 Dunmyer Road over Beaver Dam Creek

Fair

Somerset County, Pennsylvania · 1.5 Mi.Sw.Of Stoystown · Structure no. 000000000031883

Built
1964
61 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

T611 Dunmyer Road over Beaver Dam Creek is a prestressed concrete box beam or girders - multiple carrying T611 Dunmyer Road over Beaver Dam Creek in Somerset County, Pennsylvania. It was built in 1964, so it is 61 years old, older 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 5 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 60 vehicles a day, roughly 1% of them trucks, projected to reach 75 by 2043. The structure is 58 ft (17.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT611 Dunmyer Road
CrossesBeaver Dam Creek
Location1.5 Mi.Sw.Of Stoystown
RouteCity Street 0
CountySomerset County
StatePennsylvania
Coordinates40.09127, -78.96665
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating61 US tons
Inventory rating17 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic75 by 2043
Trucks1%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$864,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T611 Dunmyer Road over Beaver Dam Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is T611 Dunmyer Road over Beaver Dam 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 2023.

How much traffic does T611 Dunmyer Road over Beaver Dam Creek carry?

About 60 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T611 Dunmyer Road over Beaver Dam Creek?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 28 ft wide.

Who owns T611 Dunmyer Road over Beaver Dam Creek?

It is owned by the County Highway Agency.