US Bridges

T-520 Zion RD over Trib to Yellow Breeches

Good

Cumberland County, Pennsylvania · 1.5 Mi. N of Mt. Holly · Structure no. 000000000070433

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
300
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-520 Zion RD over Trib to Yellow Breeches is a concrete culvert carrying T-520 Zion RD over Trib to Yellow Breeches in Cumberland County, Pennsylvania. It was built in 2020, so it is 5 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 350 by 2044. The structure is 20 ft (6.1 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT-520 Zion RD
CrossesTrib to Yellow Breeches
Location1.5 Mi. N of Mt. Holly
RouteCity Street 0
Coordinates40.14544, -77.17278
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans1
Design loadHL 93
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic350 by 2044
Trucks10%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T-520 Zion RD over Trib to Yellow Breeches built?

It was built in 2020, making it 5 years old in 2025.

What condition is T-520 Zion RD over Trib to Yellow Breeches 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 April 2024.

How much traffic does T-520 Zion RD over Trib to Yellow Breeches carry?

About 300 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is T-520 Zion RD over Trib to Yellow Breeches?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns T-520 Zion RD over Trib to Yellow Breeches?

It is owned by the Town or Township Highway Agency.