US Bridges

Local 20E8-29-6 over Rock Creek N Branch

PoorPosted for load

Butler County, Kansas · 5.0E 0.8S of Smileyberg · Structure no. 000080881006428

Built
1925
100 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Local 20E8-29-6 over Rock Creek N Branch is a steel stringer/multi-beam or girder carrying Local 20E8-29-6 over Rock Creek N Branch in Butler County, Kansas. It was built in 1925, so it is 100 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 30 vehicles a day, projected to reach 30 by 2045. The structure is 38 ft (11.6 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal 20E8-29-6
CrossesRock Creek N Branch
Location5.0E 0.8S of Smileyberg
RouteCounty Highway 0
CountyButler County
StateKansas
Coordinates37.50779, -96.78872
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12.9 US tons
Inventory rating7.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2023)
Projected traffic30 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$380,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 20E8-29-6 over Rock Creek N Branch built?

It was built in 1925, making it 100 years old in 2025.

What condition is Local 20E8-29-6 over Rock Creek N Branch 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 July 2024.

How much traffic does Local 20E8-29-6 over Rock Creek N Branch carry?

About 30 vehicles per day (2023 count).

How long is Local 20E8-29-6 over Rock Creek N Branch?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 19 ft wide.

Who owns Local 20E8-29-6 over Rock Creek N Branch?

It is owned by the County Highway Agency.