US Bridges

640th Ave over East Br Indian Creek

Fair

Story County, Iowa · 1.3 Miles S of E18 · Structure no. 000000000316031

Built
2015
10 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

640th Ave over East Br Indian Creek is a concrete continuous culvert carrying 640th Ave over East Br Indian Creek in Story County, Iowa. It was built in 2015, so it is 10 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15 vehicles a day, projected to reach 15 by 2043. The structure is 44 ft (13.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries640th Ave
CrossesEast Br Indian Creek
Location1.3 Miles S of E18
RouteCounty Highway 0
CountyStory County
StateIowa
Coordinates42.14782, -93.42503
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length44 ft (13.3 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 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

OwnerCounty Highway Agency
Maintained byCounty 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 640th Ave over East Br Indian Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is 640th Ave over East Br Indian Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2022.

How much traffic does 640th Ave over East Br Indian Creek carry?

About 15 vehicles per day (2022 count).

How long is 640th Ave over East Br Indian Creek?

The structure is 44 ft (13.3 m) long with a longest span of 14 ft (4.2 m).

Who owns 640th Ave over East Br Indian Creek?

It is owned by the County Highway Agency.