US Bridges

T648 Reading Mine over Beaver Dam Creek

Fair

Somerset County, Pennsylvania · 1 Mi.Sw.Of Stoystown · Structure no. 000000000031887

Built
1910
115 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Masonry
Length
40 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

T648 Reading Mine over Beaver Dam Creek is a masonry arch - deck carrying T648 Reading Mine over Beaver Dam Creek in Somerset County, Pennsylvania. It was built in 1910, so it is 115 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 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 50 vehicles a day, projected to reach 64 by 2043. The structure is 40 ft (12.2 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesT648 Reading Mine
CrossesBeaver Dam Creek
Location1 Mi.Sw.Of Stoystown
RouteCity Street 0
CountySomerset County
StatePennsylvania
Coordinates40.09079, -78.96216
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width19 ft (5.7 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic64 by 2043
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$707,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T648 Reading Mine over Beaver Dam Creek built?

It was built in 1910, making it 115 years old in 2025.

What condition is T648 Reading Mine 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 April 2023.

How much traffic does T648 Reading Mine over Beaver Dam Creek carry?

About 50 vehicles per day (2023 count).

How long is T648 Reading Mine over Beaver Dam Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 19 ft wide.

Who owns T648 Reading Mine over Beaver Dam Creek?

It is owned by the County Highway Agency.