US Bridges

FM - Lansing over Waterway

Poor

Cass County, Iowa · 076363401 · Structure no. 000000000099730

Built
1900
125 years old
Condition
Poor
inspected March 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
379
2022 count
Owner
County
County Highway Agency

About this bridge

FM - Lansing over Waterway is a steel culvert carrying FM - Lansing over Waterway in Cass County, Iowa. It was built in 1900, so it is 125 years old, older than the Iowa average of 45.5 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.

It carries about 379 vehicles a day, roughly 9% of them trucks, projected to reach 379 by 2044. The structure is 25 ft (7.6 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM - Lansing
CrossesWaterway
Location076363401
RouteCounty Highway 0
CountyCass County
StateIowa
Coordinates41.34579, -94.97106
Functional classRural Major Collector

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width34 ft (10.3 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic379 (2022)
Projected traffic379 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$495,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM - Lansing over Waterway built?

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

What condition is FM - Lansing over Waterway 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 March 2024.

How much traffic does FM - Lansing over Waterway carry?

About 379 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FM - Lansing over Waterway?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 34 ft wide.

Who owns FM - Lansing over Waterway?

It is owned by the County Highway Agency.