US Bridges

Koser Road over Bachman Run

Fair

Lancaster County, Pennsylvania · 1.3 MI NE of SR 4011 · Structure no. 000000000021824

Built
1992
33 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
48 ft
4 main spans
Daily traffic
520
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Koser Road over Bachman Run is a concrete culvert carrying Koser Road over Bachman Run in Lancaster County, Pennsylvania. It was built in 1992, so it is 33 years old, younger 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 520 vehicles a day, roughly 1% of them trucks, projected to reach 725 by 2031. The structure is 48 ft (14.6 m) long and 57 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesKoser Road
CrossesBachman Run
Location1.3 MI NE of SR 4011
RouteCity Street 0
CountyLancaster County
StatePennsylvania
Coordinates40.12006, -76.31548
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 25 or greater
Structure length48 ft (14.6 m)
Longest span10 ft (3 m)
Deck width57 ft (17.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2011)
Projected traffic725 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Koser Road over Bachman Run built?

It was built in 1992, making it 33 years old in 2025.

What condition is Koser Road over Bachman 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 December 2023.

How much traffic does Koser Road over Bachman Run carry?

About 520 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Koser Road over Bachman Run?

The structure is 48 ft (14.6 m) long with a longest span of 10 ft (3 m) and a deck 57 ft wide.

Who owns Koser Road over Bachman Run?

It is owned by the Town or Township Highway Agency.