US Bridges

Local RD over Drainage Ditch

PoorPosted for load

Chickasaw County, Iowa · 095121908 · Structure no. 000000000019680

Built
1927
98 years old, rebuilt 1961
Condition
Poor
inspected March 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
1,051
2022 count
Owner
County
County Highway Agency

About this bridge

Local RD over Drainage Ditch is a concrete slab carrying Local RD over Drainage Ditch in Chickasaw County, Iowa. It was built in 1927 and reconstructed in 1961, so it is 98 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 3 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: posted for load restriction.

It carries about 1,051 vehicles a day, roughly 9% of them trucks, projected to reach 1,051 by 2044. The structure is 29 ft (8.8 m) long and 48 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesLocal RD
CrossesDrainage Ditch
Location095121908
RouteCounty Highway 0
StateIowa
Coordinates43.02484, -92.31785
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.6 US tons
Inventory rating19.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width48 ft (14.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,051 (2022)
Projected traffic1,051 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Local RD over Drainage Ditch built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1961.

What condition is Local RD over Drainage 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 March 2024.

How much traffic does Local RD over Drainage Ditch carry?

About 1,051 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Local RD over Drainage Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 48 ft wide.

Who owns Local RD over Drainage Ditch?

It is owned by the County Highway Agency.