US Bridges

FM Iwv RD over N Branch Old Mans CR

Fair

Johnson County, Iowa · 079081503 · Structure no. 000000000204391

Built
2004
21 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
480
2021 count
Owner
County
County Highway Agency

About this bridge

FM Iwv RD over N Branch Old Mans CR is a concrete continuous slab carrying FM Iwv RD over N Branch Old Mans CR in Johnson County, Iowa. It was built in 2004, so it is 21 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 480 vehicles a day, roughly 18% of them trucks, projected to reach 480 by 2043. The structure is 143 ft (43.6 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM Iwv RD
CrossesN Branch Old Mans CR
Location079081503
RouteCounty Highway 0
CountyJohnson County
StateIowa
Coordinates41.65826, -91.76613
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span52 ft (15.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (2021)
Projected traffic480 by 2043
Trucks18%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Iwv RD over N Branch Old Mans CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is FM Iwv RD over N Branch Old Mans CR 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 June 2023.

How much traffic does FM Iwv RD over N Branch Old Mans CR carry?

About 480 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is FM Iwv RD over N Branch Old Mans CR?

The structure is 143 ft (43.6 m) long with a longest span of 52 ft (15.9 m) and a deck 33 ft wide.

Who owns FM Iwv RD over N Branch Old Mans CR?

It is owned by the County Highway Agency.