US Bridges

Local RD over Drainage Ditch

Fair

Pocahontas County, Iowa · 093321707 · Structure no. 000000000040330

Built
1955
70 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
379
2022 count
Owner
County
County Highway Agency

About this bridge

Local RD over Drainage Ditch is a concrete culvert carrying Local RD over Drainage Ditch in Pocahontas 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 5 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 379 vehicles a day, roughly 28% of them trucks, projected to reach 379 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLocal RD
CrossesDrainage Ditch
Location093321707
RouteCounty Highway 0
CountyPocahontas County
StateIowa
Coordinates42.87852, -94.64002
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.2 US tons
Inventory rating34.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic379 (2022)
Projected traffic379 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$396,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local RD over Drainage Ditch built?

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

What condition is Local RD over Drainage Ditch 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 October 2023.

How much traffic does Local RD over Drainage Ditch carry?

About 379 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Local RD over Drainage Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns Local RD over Drainage Ditch?

It is owned by the County Highway Agency.