US Bridges

FM over S Wyacondah Ditch

Poor

Davis County, Iowa · 068141204 · Structure no. 000000000133740

Built
1968
57 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
480
2021 count
Owner
County
County Highway Agency

About this bridge

FM over S Wyacondah Ditch is a steel continuous stringer/multi-beam or girder carrying FM over S Wyacondah Ditch in Davis County, Iowa. It was built in 1968, so it is 57 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 480 vehicles a day, roughly 17% of them trucks, projected to reach 480 by 2044. The structure is 151 ft (46 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM
CrossesS Wyacondah Ditch
Location068141204
RouteCounty Highway 0
StateIowa
Coordinates40.69891, -92.42266
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length151 ft (46 m)
Longest span59 ft (18 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (2021)
Projected traffic480 by 2044
Trucks17%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over S Wyacondah Ditch built?

It was built in 1968, making it 57 years old in 2025.

What condition is FM over S Wyacondah Ditch 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 May 2024.

How much traffic does FM over S Wyacondah Ditch carry?

About 480 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is FM over S Wyacondah Ditch?

The structure is 151 ft (46 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns FM over S Wyacondah Ditch?

It is owned by the County Highway Agency.