US Bridges

T-393 Decatur Rd. over Trib of Jacks Creek

FairPosted for load

Mifflin County, Pennsylvania · 250 Ft Northeast of T460 · Structure no. 000000000026624

Built
1935
90 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
77
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-393 Decatur Rd. over Trib of Jacks Creek is a steel stringer/multi-beam or girder carrying T-393 Decatur Rd. over Trib of Jacks Creek in Mifflin County, Pennsylvania. It was built in 1935, so it is 90 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. Its operating status is: posted for load restriction.

It carries about 77 vehicles a day, projected to reach 99 by 2044. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesT-393 Decatur Rd.
CrossesTrib of Jacks Creek
Location250 Ft Northeast of T460
RouteCity Street 0
Coordinates40.71759, -77.36612
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2024)
Projected traffic99 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$16,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-393 Decatur Rd. over Trib of Jacks Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is T-393 Decatur Rd. over Trib of Jacks 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 March 2023.

How much traffic does T-393 Decatur Rd. over Trib of Jacks Creek carry?

About 77 vehicles per day (2024 count).

How long is T-393 Decatur Rd. over Trib of Jacks Creek?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns T-393 Decatur Rd. over Trib of Jacks Creek?

It is owned by the Town or Township Highway Agency.