US Bridges

SR 22-US 22 over Beaver Dam Run

Fair

Mifflin County, Pennsylvania · Atkinson Mills · Structure no. 000000000026362

Built
1937
88 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
47 ft
1 main span
Daily traffic
5,213
2024 count
Owner
State
State Highway Agency

About this bridge

SR 22-US 22 over Beaver Dam Run is a concrete tee beam carrying SR 22-US 22 over Beaver Dam Run in Mifflin County, Pennsylvania. It was built in 1937, so it is 88 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 5,213 vehicles a day, roughly 13% of them trucks, projected to reach 5,901 by 2044. The structure is 47 ft (14.3 m) long and 44 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesSR 22-US 22
CrossesBeaver Dam Run
LocationAtkinson Mills
RouteU.S. Route 22
CountyMifflin County
StatePennsylvania
Coordinates40.45454, -77.82119
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width44 ft (13.4 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,213 (2024)
Projected traffic5,901 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$550,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 22-US 22 over Beaver Dam Run built?

It was built in 1937, making it 88 years old in 2025.

What condition is SR 22-US 22 over Beaver Dam Run 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 SR 22-US 22 over Beaver Dam Run carry?

About 5,213 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR 22-US 22 over Beaver Dam Run?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 44 ft wide.

Who owns SR 22-US 22 over Beaver Dam Run?

It is owned by the State Highway Agency.