US Bridges

Landau RD over Little Turkey

FairPosted for load

Clayton County, Iowa · 091023005 · Structure no. 000000000118100

Built
1955
70 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
111 ft
2 main spans
Daily traffic
62
2022 count
Owner
County
County Highway Agency

About this bridge

Landau RD over Little Turkey is a steel stringer/multi-beam or girder carrying Landau RD over Little Turkey in Clayton 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 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. Its operating status is: posted for other load-capacity restriction.

It carries about 62 vehicles a day, projected to reach 62 by 2044. The structure is 111 ft (33.8 m) long and 22 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLandau RD
CrossesLittle Turkey
Location091023005
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.66311, -91.12706
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length111 ft (33.8 m)
Longest span55 ft (16.8 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2022)
Projected traffic62 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Landau RD over Little Turkey built?

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

What condition is Landau RD over Little Turkey 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 November 2024.

How much traffic does Landau RD over Little Turkey carry?

About 62 vehicles per day (2022 count).

How long is Landau RD over Little Turkey?

The structure is 111 ft (33.8 m) long with a longest span of 55 ft (16.8 m) and a deck 22 ft wide.

Who owns Landau RD over Little Turkey?

It is owned by the County Highway Agency.