US Bridges

T-508 Crater Hill over W. Branch Mahantango Cr.

Good

Snyder County, Pennsylvania · 1 Mi.Se of Richfield · Structure no. 000000000052717

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
39 ft
1 main span
Daily traffic
250
2014 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-508 Crater Hill over W. Branch Mahantango Cr. is a concrete box beam or girders - multiple carrying T-508 Crater Hill over W. Branch Mahantango Cr. in Snyder County, Pennsylvania. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 250 vehicles a day, projected to reach 250 by 2034. The structure is 39 ft (11.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT-508 Crater Hill
CrossesW. Branch Mahantango Cr.
Location1 Mi.Se of Richfield
RouteCity Street 0
Coordinates40.67776, -77.09619
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59 US tons
Inventory rating45.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2014)
Projected traffic250 by 2034
Trucks—
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T-508 Crater Hill over W. Branch Mahantango Cr. built?

It was built in 2015, making it 10 years old in 2025.

What condition is T-508 Crater Hill over W. Branch Mahantango Cr. 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 September 2023.

How much traffic does T-508 Crater Hill over W. Branch Mahantango Cr. carry?

About 250 vehicles per day (2014 count).

How long is T-508 Crater Hill over W. Branch Mahantango Cr.?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns T-508 Crater Hill over W. Branch Mahantango Cr.?

It is owned by the Town or Township Highway Agency.