US Bridges

210th Street over Fourmile Creek

Good

Union County, Iowa · 072283505 · Structure no. 000000000325541

Built
1995
30 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

210th Street over Fourmile Creek is a concrete continuous slab carrying 210th Street over Fourmile Creek in Union County, Iowa. It was built in 1995, so it is 30 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 50 vehicles a day, projected to reach 50 by 2044. The structure is 128 ft (39 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries210th Street
CrossesFourmile Creek
Location072283505
RouteCounty Highway 0
StateIowa
Coordinates40.99811, -94.04107
Functional classRural Local

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 inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating96.7 US tons
Inventory rating58 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 210th Street over Fourmile Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is 210th Street over Fourmile 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 October 2024.

How much traffic does 210th Street over Fourmile Creek carry?

About 50 vehicles per day (2022 count).

How long is 210th Street over Fourmile Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns 210th Street over Fourmile Creek?

It is owned by the County Highway Agency.