US Bridges

FM-150th Street over East Nodaway River

PoorPosted for load

Adams County, Iowa · 073323301 · Structure no. 000000000060500

Built
1955
70 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
179 ft
3 main spans
Daily traffic
399
2022 count
Owner
County
County Highway Agency

About this bridge

FM-150th Street over East Nodaway River is a steel continuous stringer/multi-beam or girder carrying FM-150th Street over East Nodaway River in Adams County, Iowa. It was built in 1955, so it is 70 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 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 other load-capacity restriction.

It carries about 399 vehicles a day, roughly 11% of them trucks, projected to reach 399 by 2044. The structure is 179 ft (54.6 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM-150th Street
CrossesEast Nodaway River
Location073323301
RouteCounty Highway 0
StateIowa
Coordinates41.08593, -94.54565
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.9 US tons
Inventory rating19.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length179 ft (54.6 m)
Longest span68 ft (20.7 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic399 (2022)
Projected traffic399 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM-150th Street over East Nodaway River built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM-150th Street over East Nodaway 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 February 2024.

How much traffic does FM-150th Street over East Nodaway River carry?

About 399 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FM-150th Street over East Nodaway River?

The structure is 179 ft (54.6 m) long with a longest span of 68 ft (20.7 m) and a deck 22 ft wide.

Who owns FM-150th Street over East Nodaway River?

It is owned by the County Highway Agency.