US Bridges

Easton Blvd over Four Mile Creek

Good

Polk County, Iowa · 0792332 · Structure no. 000000000003762

Built
2011
14 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
160 ft
4 main spans
Daily traffic
7,802
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Easton Blvd over Four Mile Creek is a concrete continuous slab carrying Easton Blvd over Four Mile Creek in Polk County, Iowa. It was built in 2011, so it is 14 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 7,802 vehicles a day, projected to reach 7,802 by 2043. The structure is 160 ft (48.8 m) long and 63 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesEaston Blvd
CrossesFour Mile Creek
Location0792332
RouteCity Street 0
StateIowa
Coordinates41.61392, -93.54553
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span45 ft (13.7 m)
Deck width63 ft (19.1 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,802 (2022)
Projected traffic7,802 by 2043
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Easton Blvd over Four Mile Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Easton Blvd over Four Mile 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 July 2023.

How much traffic does Easton Blvd over Four Mile Creek carry?

About 7,802 vehicles per day (2022 count).

How long is Easton Blvd over Four Mile Creek?

The structure is 160 ft (48.8 m) long with a longest span of 45 ft (13.7 m) and a deck 63 ft wide.

Who owns Easton Blvd over Four Mile Creek?

It is owned by the City or Municipal Highway Agency.