US Bridges

T448 Mahantongo Mt over Mahantango Creek

Good

Schuylkill County, Pennsylvania · 500 Ft South of SR 4014 · Structure no. 000000000030948

Built
1973
52 years old, rebuilt 2013
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
400
1985 count
Owner
County
County Highway Agency

About this bridge

T448 Mahantongo Mt over Mahantango Creek is a prestressed concrete box beam or girders - multiple carrying T448 Mahantongo Mt over Mahantango Creek in Schuylkill County, Pennsylvania. It was built in 1973 and reconstructed in 2013, so it is 52 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 400 vehicles a day, roughly 1% of them trucks, projected to reach 700 by 2030. The structure is 68 ft (20.7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT448 Mahantongo Mt
CrossesMahantango Creek
Location500 Ft South of SR 4014
RouteCity Street 0
Coordinates40.6714, -76.62274
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length68 ft (20.7 m)
Longest span67 ft (20.4 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (1985)
Projected traffic700 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T448 Mahantongo Mt over Mahantango Creek built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2013.

What condition is T448 Mahantongo Mt over Mahantango Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does T448 Mahantongo Mt over Mahantango Creek carry?

About 400 vehicles per day (1985 count), of which roughly 1% are trucks.

How long is T448 Mahantongo Mt over Mahantango Creek?

The structure is 68 ft (20.7 m) long with a longest span of 67 ft (20.4 m) and a deck 26 ft wide.

Who owns T448 Mahantongo Mt over Mahantango Creek?

It is owned by the County Highway Agency.