US Bridges

T557 Roherstown RD over Swarr Run

Fair

Lancaster County, Pennsylvania · 800 Ft North of SR 4020 · Structure no. 000000000021926

Built
1961
64 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
1,860
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T557 Roherstown RD over Swarr Run is a prestressed concrete box beam or girders - multiple carrying T557 Roherstown RD over Swarr Run in Lancaster County, Pennsylvania. It was built in 1961, so it is 64 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 6 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 1,860 vehicles a day, roughly 1% of them trucks, projected to reach 2,490 by 2031. The structure is 36 ft (11 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesT557 Roherstown RD
CrossesSwarr Run
Location800 Ft North of SR 4020
RouteCity Street 0
CountyLancaster County
StatePennsylvania
Coordinates40.07179, -76.35699
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width38 ft (11.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,860 (2011)
Projected traffic2,490 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was T557 Roherstown RD over Swarr Run built?

It was built in 1961, making it 64 years old in 2025.

What condition is T557 Roherstown RD over Swarr Run 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 October 2023.

How much traffic does T557 Roherstown RD over Swarr Run carry?

About 1,860 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is T557 Roherstown RD over Swarr Run?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 38 ft wide.

Who owns T557 Roherstown RD over Swarr Run?

It is owned by the Town or Township Highway Agency.