US Bridges

US 52 over Br of Coons Creek

Good

Jackson County, Iowa · 1.5 Mi. S of Jct. SR Z34 · Structure no. 000000000030031

Built
1978
47 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
920
2022 count
Owner
State
State Highway Agency

About this bridge

US 52 over Br of Coons Creek is a prestressed concrete stringer/multi-beam or girder carrying US 52 over Br of Coons Creek in Jackson County, Iowa. It was built in 1978, so it is 47 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 920 vehicles a day, roughly 17% of them trucks, projected to reach 920 by 2043. The structure is 58 ft (17.7 m) long and 47 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesUS 52
CrossesBr of Coons Creek
Location1.5 Mi. S of Jct. SR Z34
RouteU.S. Route 52
StateIowa
Coordinates42.18254, -90.35631
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating90.5 US tons
Inventory rating54.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2022)
Projected traffic920 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 over Br of Coons Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 52 over Br of Coons Creek 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 US 52 over Br of Coons Creek carry?

About 920 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 52 over Br of Coons Creek?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 47 ft wide.

Who owns US 52 over Br of Coons Creek?

It is owned by the State Highway Agency.