US Bridges

Ia 93 over Drainage Ditch

Fair

Bremer County, Iowa · 0.6 Mi. E of Jct. SR V43 · Structure no. 000000000015680

Built
1954
71 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
2,130
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 93 over Drainage Ditch is a concrete continuous culvert carrying Ia 93 over Drainage Ditch in Bremer County, Iowa. It was built in 1954, so it is 71 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.

It carries about 2,130 vehicles a day, roughly 5% of them trucks, projected to reach 2,130 by 2042. The structure is 26 ft (7.9 m) long and 66 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 93
CrossesDrainage Ditch
Location0.6 Mi. E of Jct. SR V43
RouteState Highway 93
CountyBremer County
StateIowa
Coordinates42.80944, -92.25816
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width66 ft (20.1 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,130 (2022)
Projected traffic2,130 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Ia 93 over Drainage Ditch built?

It was built in 1954, making it 71 years old in 2025.

What condition is Ia 93 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 March 2023.

How much traffic does Ia 93 over Drainage Ditch carry?

About 2,130 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ia 93 over Drainage Ditch?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 66 ft wide.

Who owns Ia 93 over Drainage Ditch?

It is owned by the State Highway Agency.