US Bridges

US 69 over Iowa River Overflow

Fair

Hancock County, Iowa · 0.4 Mi. S of Jct. SR B55 · Structure no. 000000000026860

Built
1922
103 years old, rebuilt 1960
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
21 ft
1 main span
Daily traffic
1,650
2022 count
Owner
State
State Highway Agency

About this bridge

US 69 over Iowa River Overflow is a concrete slab carrying US 69 over Iowa River Overflow in Hancock County, Iowa. It was built in 1922 and reconstructed in 1960, so it is 103 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 1,650 vehicles a day, roughly 28% of them trucks, projected to reach 1,650 by 2044. The structure is 21 ft (6.4 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 69
CrossesIowa River Overflow
Location0.4 Mi. S of Jct. SR B55
RouteU.S. Route 69
StateIowa
Coordinates43.00301, -93.61636
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
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 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length21 ft (6.4 m)
Longest span19 ft (5.8 m)
Deck width46 ft (14 m)
Roadway width42 ft (12.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2022)
Projected traffic1,650 by 2044
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

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 Iowa River Overflow built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1960.

What condition is US 69 over Iowa River Overflow 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 August 2024.

How much traffic does US 69 over Iowa River Overflow carry?

About 1,650 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 69 over Iowa River Overflow?

The structure is 21 ft (6.4 m) long with a longest span of 19 ft (5.8 m) and a deck 46 ft wide.

Who owns US 69 over Iowa River Overflow?

It is owned by the State Highway Agency.