US Bridges

US 218 over Deer Creek

Good

Johnson County, Iowa · 0.9 Mi. S of Jct. I-80 · Structure no. 000000000605565

Built
1970
55 years old, rebuilt 2019
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
32,400
2022 count
Owner
State
State Highway Agency

About this bridge

US 218 over Deer Creek is a concrete continuous culvert carrying US 218 over Deer Creek in Johnson County, Iowa. It was built in 1970 and reconstructed in 2019, so it is 55 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 32,400 vehicles a day, roughly 16% of them trucks, projected to reach 32,400 by 2044. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 218
CrossesDeer Creek
Location0.9 Mi. S of Jct. I-80
RouteU.S. Route 218
StateIowa
Coordinates41.68286, -91.63165
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,400 (2022)
Projected traffic32,400 by 2044
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 218 over Deer Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2019.

What condition is US 218 over Deer 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 November 2024.

How much traffic does US 218 over Deer Creek carry?

About 32,400 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US 218 over Deer Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns US 218 over Deer Creek?

It is owned by the State Highway Agency.