US Bridges

US 52 & Ia 64 over Mississippi R Overflow

Good

Jackson County, Iowa · 1.8 Mi. E US 67 · Structure no. 000000000029951

Built
2018
7 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
381 ft
4 main spans
Daily traffic
2,150
2022 count
Owner
State
State Highway Agency

About this bridge

US 52 & Ia 64 over Mississippi R Overflow is a prestressed concrete stringer/multi-beam or girder carrying US 52 & Ia 64 over Mississippi R Overflow in Jackson County, Iowa. It was built in 2018, so it is 7 years old, younger 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 2,150 vehicles a day, roughly 6% of them trucks, projected to reach 2,150 by 2044. The structure is 381 ft (116.2 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 52 & Ia 64
CrossesMississippi R Overflow
Location1.8 Mi. E US 67
RouteU.S. Route 52
StateIowa
Coordinates42.07586, -90.17599
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length381 ft (116.2 m)
Longest span97 ft (29.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2022)
Projected traffic2,150 by 2044
Trucks6%
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 52 & Ia 64 over Mississippi R Overflow built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 52 & Ia 64 over Mississippi R Overflow 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 May 2024.

How much traffic does US 52 & Ia 64 over Mississippi R Overflow carry?

About 2,150 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is US 52 & Ia 64 over Mississippi R Overflow?

The structure is 381 ft (116.2 m) long with a longest span of 97 ft (29.6 m) and a deck 43 ft wide.

Who owns US 52 & Ia 64 over Mississippi R Overflow?

It is owned by the State Highway Agency.