US Bridges

Church ST (T-308) over W. Br. Mahantango

PoorPosted for load

Snyder County, Pennsylvania · Borough of Richfield · Structure no. 000000000031314

Built
1948
77 years old, rebuilt 1987
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
75
2009 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Church ST (T-308) over W. Br. Mahantango is a steel stringer/multi-beam or girder carrying Church ST (T-308) over W. Br. Mahantango in Snyder County, Pennsylvania. It was built in 1948 and reconstructed in 1987, so it is 77 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 3 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 5% of them trucks, projected to reach 115 by 2031. The structure is 28 ft (8.5 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesChurch ST (T-308)
CrossesW. Br. Mahantango
LocationBorough of Richfield
RouteCity Street 0
Coordinates40.69068, -77.112
Functional classRural Local

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating24 US tons
Inventory rating14 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2009)
Projected traffic115 by 2031
Trucks5%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$198,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Church ST (T-308) over W. Br. Mahantango built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1987.

What condition is Church ST (T-308) over W. Br. Mahantango 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 September 2023.

How much traffic does Church ST (T-308) over W. Br. Mahantango carry?

About 75 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Church ST (T-308) over W. Br. Mahantango?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns Church ST (T-308) over W. Br. Mahantango?

It is owned by the Town or Township Highway Agency.