US Bridges

Zenith (25.7-Z.0) over Trib. to Irish Creek

PoorPosted for load

Marshall County, Kansas · 2.0N 1.3W of Lillis · Structure no. 000580927703500

Built
1900
125 years old
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
72 ft
1 main span
Daily traffic
10
2007 count
Owner
County
County Highway Agency

About this bridge

Zenith (25.7-Z.0) over Trib. to Irish Creek is a steel truss - thru carrying Zenith (25.7-Z.0) over Trib. to Irish Creek in Marshall County, Kansas. It was built in 1900, so it is 125 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 10 vehicles a day, projected to reach 10 by 2043. The structure is 72 ft (21.9 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesZenith (25.7-Z.0)
CrossesTrib. to Irish Creek
Location2.0N 1.3W of Lillis
RouteCounty Highway 0
CountyMarshall County
StateKansas
Coordinates39.63884, -96.31967
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.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating17 US tons
Inventory rating10 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span40 ft (12.1 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2007)
Projected traffic10 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$325,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Zenith (25.7-Z.0) over Trib. to Irish Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is Zenith (25.7-Z.0) over Trib. to Irish 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 July 2024.

How much traffic does Zenith (25.7-Z.0) over Trib. to Irish Creek carry?

About 10 vehicles per day (2007 count).

How long is Zenith (25.7-Z.0) over Trib. to Irish Creek?

The structure is 72 ft (21.9 m) long with a longest span of 40 ft (12.1 m) and a deck 16 ft wide.

Who owns Zenith (25.7-Z.0) over Trib. to Irish Creek?

It is owned by the County Highway Agency.