US Bridges

TR 11 Nb/Sb over Over Mahantango Creek

Good

Snyder County, Pennsylvania · Juniata-Snyder CO Line · Structure no. 000000000041458

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
298 ft
4 main spans
Daily traffic
14,781
2024 count
Owner
State
State Highway Agency

About this bridge

TR 11 Nb/Sb over Over Mahantango Creek is a prestressed concrete continuous box beam or girders - multiple carrying TR 11 Nb/Sb over Over Mahantango Creek in Snyder County, Pennsylvania. It was built in 2001, so it is 24 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 14,781 vehicles a day, roughly 29% of them trucks, projected to reach 14,549 by 2032. The structure is 298 ft (90.8 m) long and 90 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesTR 11 Nb/Sb
CrossesOver Mahantango Creek
LocationJuniata-Snyder CO Line
RouteU.S. Route 11
Coordinates40.64201, -76.93989
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span81 ft (24.7 m)
Deck width90 ft (27.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,781 (2024)
Projected traffic14,549 by 2032
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 TR 11 Nb/Sb over Over Mahantango Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is TR 11 Nb/Sb over 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 2023.

How much traffic does TR 11 Nb/Sb over Over Mahantango Creek carry?

About 14,781 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is TR 11 Nb/Sb over Over Mahantango Creek?

The structure is 298 ft (90.8 m) long with a longest span of 81 ft (24.7 m) and a deck 90 ft wide.

Who owns TR 11 Nb/Sb over Over Mahantango Creek?

It is owned by the State Highway Agency.