US Bridges

Ia 3 over Drainage Ditch

Good

Bremer County, Iowa · 0.1 Mi. E of Jct. US 218 · Structure no. 000000000015560

Built
1967
58 years old, rebuilt 1996
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
5,400
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 3 over Drainage Ditch is a concrete continuous culvert carrying Ia 3 over Drainage Ditch in Bremer County, Iowa. It was built in 1967 and reconstructed in 1996, so it is 58 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,400 vehicles a day, roughly 3% of them trucks, projected to reach 5,400 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIa 3
CrossesDrainage Ditch
Location0.1 Mi. E of Jct. US 218
RouteState Highway 3
StateIowa
Coordinates42.7151, -92.53146
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2022)
Projected traffic5,400 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 3 over Drainage Ditch built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1996.

What condition is Ia 3 over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Ia 3 over Drainage Ditch carry?

About 5,400 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Ia 3 over Drainage Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Ia 3 over Drainage Ditch?

It is owned by the State Highway Agency.