US Bridges

Ia 64 over Deep Creek

Good

Jackson County, Iowa · 0.3 Mi. E of Jct. SR Z20 · Structure no. 000000000030331

Built
1984
41 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
269 ft
4 main spans
Daily traffic
2,290
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 64 over Deep Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 64 over Deep Creek in Jackson County, Iowa. It was built in 1984, so it is 41 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 2,290 vehicles a day, roughly 11% of them trucks, projected to reach 2,290 by 2042. The structure is 269 ft (82 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 64
CrossesDeep Creek
Location0.3 Mi. E of Jct. SR Z20
RouteState Highway 64
CountyJackson County
StateIowa
Coordinates42.05529, -90.42757
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
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.4 US tons
Inventory rating36.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length269 ft (82 m)
Longest span69 ft (21 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,290 (2022)
Projected traffic2,290 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Ia 64 over Deep Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ia 64 over Deep 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 Ia 64 over Deep Creek carry?

About 2,290 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 64 over Deep Creek?

The structure is 269 ft (82 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.

Who owns Ia 64 over Deep Creek?

It is owned by the State Highway Agency.