US Bridges

SR 22-US 22 over SR 522 Seda-Cog

Fair

Mifflin County, Pennsylvania · Lewistown Boro · Structure no. 000000000026439

Built
1958
67 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
3 main spans
Daily traffic
11,262
2024 count
Owner
State
State Highway Agency

About this bridge

SR 22-US 22 over SR 522 Seda-Cog is a steel continuous stringer/multi-beam or girder carrying SR 22-US 22 over SR 522 Seda-Cog in Mifflin County, Pennsylvania. It was built in 1958, 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 11,262 vehicles a day, roughly 18% of them trucks, projected to reach 13,850 by 2044. The structure is 268 ft (81.7 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 22-US 22
CrossesSR 522 Seda-Cog
LocationLewistown Boro
RouteU.S. Route 22
CountyMifflin County
StatePennsylvania
Coordinates40.6056, -77.5655
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length268 ft (81.7 m)
Longest span111 ft (33.8 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,262 (2024)
Projected traffic13,850 by 2044
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 22-US 22 over SR 522 Seda-Cog built?

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

What condition is SR 22-US 22 over SR 522 Seda-Cog 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 May 2024.

How much traffic does SR 22-US 22 over SR 522 Seda-Cog carry?

About 11,262 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is SR 22-US 22 over SR 522 Seda-Cog?

The structure is 268 ft (81.7 m) long with a longest span of 111 ft (33.8 m) and a deck 36 ft wide.

Who owns SR 22-US 22 over SR 522 Seda-Cog?

It is owned by the State Highway Agency.