US Bridges

I 80 over Drainage Ditch

Fair

Pottawattamie County, Iowa · 0.3 Mi. W of SR M-16 · Structure no. 000000000045480

Built
1966
59 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
23,000
2022 count
Owner
State
State Highway Agency

About this bridge

I 80 over Drainage Ditch is a concrete continuous culvert carrying I 80 over Drainage Ditch in Pottawattamie County, Iowa. It was built in 1966, so it is 59 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 23,000 vehicles a day, roughly 39% of them trucks, projected to reach 23,000 by 2042. The structure is 24 ft (7.3 m) long.

Location

Open in Google Maps
CarriesI 80
CrossesDrainage Ditch
Location0.3 Mi. W of SR M-16
RouteInterstate 80
CountyPottawattamie County
StateIowa
Coordinates41.49873, -95.45661
Functional classRural Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.5 US tons
Inventory rating32 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2022)
Projected traffic23,000 by 2042
Trucks39%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 80 over Drainage Ditch built?

It was built in 1966, making it 59 years old in 2025.

What condition is I 80 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 I 80 over Drainage Ditch carry?

About 23,000 vehicles per day (2022 count), of which roughly 39% are trucks.

How long is I 80 over Drainage Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns I 80 over Drainage Ditch?

It is owned by the State Highway Agency.