US Bridges

US 69 over Drainage Ditch

Fair

Hamilton County, Iowa · 0.5 Mi. N of N Jct. 175 · Structure no. 000000000026421

Built
2009
16 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
114 ft
3 main spans
Daily traffic
1,620
2022 count
Owner
State
State Highway Agency

About this bridge

US 69 over Drainage Ditch is a concrete continuous slab carrying US 69 over Drainage Ditch in Hamilton County, Iowa. It was built in 2009, so it is 16 years old, younger 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 1,620 vehicles a day, roughly 17% of them trucks, projected to reach 1,620 by 2042. The structure is 114 ft (34.7 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 69
CrossesDrainage Ditch
Location0.5 Mi. N of N Jct. 175
RouteU.S. Route 69
StateIowa
Coordinates42.31435, -93.63997
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.1 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span43 ft (13.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,620 (2022)
Projected traffic1,620 by 2042
Trucks17%
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

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 US 69 over Drainage Ditch built?

It was built in 2009, making it 16 years old in 2025.

What condition is US 69 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 May 2023.

How much traffic does US 69 over Drainage Ditch carry?

About 1,620 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 69 over Drainage Ditch?

The structure is 114 ft (34.7 m) long with a longest span of 43 ft (13.1 m) and a deck 43 ft wide.

Who owns US 69 over Drainage Ditch?

It is owned by the State Highway Agency.