US Bridges

FM Legno over Devils Run

PoorClosed to traffic

Iowa County, Iowa · 079122401 · Structure no. 000000000189910

Built
1900
125 years old, rebuilt 2005
Condition
Poor
inspected April 2014
Type
Girder and Floorbeam System
Steel
Length
32 ft
1 main span
Daily traffic
—
2022 count
Owner
County
County Highway Agency

About this bridge

FM Legno over Devils Run is a steel girder and floorbeam system carrying FM Legno over Devils Run in Iowa County, Iowa. It was built in 1900 and reconstructed in 2005, 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 2 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: closed to all traffic.

No traffic count is recorded. The structure is 32 ft (9.8 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM Legno
CrossesDevils Run
Location079122401
RouteCounty Highway 0
StateIowa
Coordinates41.64464, -92.19885
Functional classRural Minor 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.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2014
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Legno over Devils Run built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2005.

What condition is FM Legno over Devils Run 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 April 2014.

How much traffic does FM Legno over Devils Run carry?

No traffic count is recorded for this structure.

How long is FM Legno over Devils Run?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns FM Legno over Devils Run?

It is owned by the County Highway Agency.