US Bridges

SR 22-US 22 over Twp RD 600

Fair

Mifflin County, Pennsylvania · Lewistown · Structure no. 000000000026441

Built
1958
67 years old, rebuilt 2015
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
14,029
2023 count
Owner
State
State Highway Agency

About this bridge

SR 22-US 22 over Twp RD 600 is a prestressed concrete box beam or girders - multiple carrying SR 22-US 22 over Twp RD 600 in Mifflin County, Pennsylvania. It was built in 1958 and reconstructed in 2015, so it is 67 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 14,029 vehicles a day, roughly 26% of them trucks, projected to reach 29,286 by 2046. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 22-US 22
CrossesTwp RD 600
LocationLewistown
RouteU.S. Route 22
CountyMifflin County
StatePennsylvania
Coordinates40.60182, -77.562
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,029 (2023)
Projected traffic29,286 by 2046
Trucks26%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$419,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 22-US 22 over Twp RD 600 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2015.

What condition is SR 22-US 22 over Twp RD 600 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 2024.

How much traffic does SR 22-US 22 over Twp RD 600 carry?

About 14,029 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is SR 22-US 22 over Twp RD 600?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m).

Who owns SR 22-US 22 over Twp RD 600?

It is owned by the State Highway Agency.