US Bridges

SR 35-PA 35 over Mahantango Creek

Poor

Juniata County, Pennsylvania · Richfield · Structure no. 000000000020000

Built
1929
96 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
67 ft
2 main spans
Daily traffic
4,026
2024 count
Owner
State
State Highway Agency

About this bridge

SR 35-PA 35 over Mahantango Creek is a concrete tee beam carrying SR 35-PA 35 over Mahantango Creek in Juniata 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,026 vehicles a day, roughly 9% of them trucks, projected to reach 4,189 by 2044. The structure is 67 ft (20.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 35-PA 35
CrossesMahantango Creek
LocationRichfield
RouteState Highway 35
CountyJuniata County
StatePennsylvania
Coordinates40.69038, -77.10689
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, 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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating50 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length67 ft (20.4 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,026 (2024)
Projected traffic4,189 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$564,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 35-PA 35 over Mahantango Creek built?

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

What condition is SR 35-PA 35 over Mahantango Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does SR 35-PA 35 over Mahantango Creek carry?

About 4,026 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 35-PA 35 over Mahantango Creek?

The structure is 67 ft (20.4 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns SR 35-PA 35 over Mahantango Creek?

It is owned by the State Highway Agency.