US Bridges

155th ST over Yellow Spring Creek

Good

Des Moines County, Iowa · 071023507 · Structure no. 000000000143611

Built
2014
11 years old
Condition
Good
inspected September 2021
Type
Slab
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

155th ST over Yellow Spring Creek is a concrete continuous slab carrying 155th ST over Yellow Spring Creek in Des Moines County, Iowa. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 90 vehicles a day, projected to reach 90 by 2043. The structure is 153 ft (46.6 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries155th ST
CrossesYellow Spring Creek
Location071023507
RouteCounty Highway 0
StateIowa
Coordinates40.90588, -91.05197
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length153 ft (46.6 m)
Longest span59 ft (18 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic90 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 155th ST over Yellow Spring Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is 155th ST over Yellow Spring 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 September 2021.

How much traffic does 155th ST over Yellow Spring Creek carry?

About 90 vehicles per day (2022 count).

How long is 155th ST over Yellow Spring Creek?

The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns 155th ST over Yellow Spring Creek?

It is owned by the County Highway Agency.