US Bridges

FM over New Farmer Main D.D.

Fair

Monona County, Iowa · 084450301 · Structure no. 000000000364410

Built
2002
23 years old
Condition
Fair
inspected May 2022
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

FM over New Farmer Main D.D. is a steel culvert carrying FM over New Farmer Main D.D. in Monona County, Iowa. It was built in 2002, so it is 23 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, projected to reach 50 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM
CrossesNew Farmer Main D.D.
Location084450301
RouteCounty Highway 0
CountyMonona County
StateIowa
Coordinates42.12682, -96.078
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM over New Farmer Main D.D. built?

It was built in 2002, making it 23 years old in 2025.

What condition is FM over New Farmer Main D.D. in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2022.

How much traffic does FM over New Farmer Main D.D. carry?

About 50 vehicles per day (2022 count).

How long is FM over New Farmer Main D.D.?

The structure is 27 ft (8.2 m) long with a longest span of 14 ft (4.3 m).

Who owns FM over New Farmer Main D.D.?

It is owned by the County Highway Agency.