US Bridges

Pa 35 over Trib No Br Mahantango CR

Fair

Snyder County, Pennsylvania · Village Mt Pleasant Mills · Structure no. 000000000031071

Built
1929
96 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
4,066
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 35 over Trib No Br Mahantango CR is a concrete tee beam carrying Pa 35 over Trib No Br Mahantango CR in Snyder County, Pennsylvania. It was built in 1929, so it is 96 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 4,066 vehicles a day, roughly 10% of them trucks, projected to reach 4,373 by 2032. The structure is 25 ft (7.6 m) long and 33 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesPa 35
CrossesTrib No Br Mahantango CR
LocationVillage Mt Pleasant Mills
RouteState Highway 35
Coordinates40.73156, -77.00823
Functional classRural Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,066 (2024)
Projected traffic4,373 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemNo

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$96,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 35 over Trib No Br Mahantango CR built?

It was built in 1929, making it 96 years old in 2025.

What condition is Pa 35 over Trib No Br Mahantango CR 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 2024.

How much traffic does Pa 35 over Trib No Br Mahantango CR carry?

About 4,066 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Pa 35 over Trib No Br Mahantango CR?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 33 ft wide.

Who owns Pa 35 over Trib No Br Mahantango CR?

It is owned by the State Highway Agency.