US Bridges

206th over Trib Delaware River

PoorPosted for load

Jefferson County, Kansas · 6.0N 6.9W Valley Falls · Structure no. 000441007103800

Built
1909
116 years old
Condition
Poor
inspected November 2024
Type
Truss - Thru
Steel
Length
56 ft
1 main span
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

206th over Trib Delaware River is a steel truss - thru carrying 206th over Trib Delaware River in Jefferson County, Kansas. It was built in 1909, so it is 116 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 3 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 5 vehicles a day, projected to reach 10 by 2040. The structure is 56 ft (17.1 m) long and 17 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries206th
CrossesTrib Delaware River
Location6.0N 6.9W Valley Falls
RouteCounty Highway 0
StateKansas
Coordinates39.419, -95.58835
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating6.8 US tons
Inventory rating4.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadUnknown
Structure length56 ft (17.1 m)
Longest span40 ft (12.1 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic5 (2022)
Projected traffic10 by 2040
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$310,000 (2040 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 206th over Trib Delaware River built?

It was built in 1909, making it 116 years old in 2025.

What condition is 206th over Trib Delaware River 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 November 2024.

How much traffic does 206th over Trib Delaware River carry?

About 5 vehicles per day (2022 count).

How long is 206th over Trib Delaware River?

The structure is 56 ft (17.1 m) long with a longest span of 40 ft (12.1 m) and a deck 17 ft wide.

Who owns 206th over Trib Delaware River?

It is owned by the County Highway Agency.