US Bridges

NW 100th Street over Little Beaver Creek

Good

Polk County, Iowa · 0.1 Mi. S. of NW 82nd Ave · Structure no. 000000000282261

Built
2017
8 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
51 ft
3 main spans
Daily traffic
230
2008 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW 100th Street over Little Beaver Creek is a concrete continuous culvert carrying NW 100th Street over Little Beaver Creek in Polk County, Iowa. It was built in 2017, so it is 8 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 230 vehicles a day, projected to reach 230 by 2044. The structure is 51 ft (15.6 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNW 100th Street
CrossesLittle Beaver Creek
Location0.1 Mi. S. of NW 82nd Ave
RouteCity Street 0
StateIowa
Coordinates41.70938, -93.75579
Functional classUrban Local

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length51 ft (15.6 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2008)
Projected traffic230 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 100th Street over Little Beaver Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is NW 100th Street over Little Beaver 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 August 2024.

How much traffic does NW 100th Street over Little Beaver Creek carry?

About 230 vehicles per day (2008 count).

How long is NW 100th Street over Little Beaver Creek?

The structure is 51 ft (15.6 m) long with a longest span of 16 ft (4.9 m).

Who owns NW 100th Street over Little Beaver Creek?

It is owned by the City or Municipal Highway Agency.