US Bridges

160 Rd. over Antelope Creek

PoorPosted for load

Marion County, Kansas · 2.5S 2.1E of Hillsboro · Structure no. 000570839105340

Built
1920
105 years old
Condition
Poor
inspected January 2025
Type
Tee Beam
Concrete
Length
28 ft
1 main span
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

160 Rd. over Antelope Creek is a concrete tee beam carrying 160 Rd. over Antelope Creek in Marion County, Kansas. It was built in 1920, so it is 105 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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 40 vehicles a day, projected to reach 48 by 2045. The structure is 28 ft (8.5 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries160 Rd.
CrossesAntelope Creek
Location2.5S 2.1E of Hillsboro
RouteCounty Highway 0
CountyMarion County
StateKansas
Coordinates38.30447, -97.16711
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span27 ft (8.1 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2020)
Projected traffic48 by 2045
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$240,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 160 Rd. over Antelope Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is 160 Rd. over Antelope Creek 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 January 2025.

How much traffic does 160 Rd. over Antelope Creek carry?

About 40 vehicles per day (2020 count).

How long is 160 Rd. over Antelope Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.1 m) and a deck 21 ft wide.

Who owns 160 Rd. over Antelope Creek?

It is owned by the County Highway Agency.