US Bridges

527/660th Ave over East Br Indian Creek

Fair

Story County, Iowa · 084220202 · Structure no. 000000000315090

Built
1962
63 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
429
2022 count
Owner
County
County Highway Agency

About this bridge

527/660th Ave over East Br Indian Creek is a steel stringer/multi-beam or girder carrying 527/660th Ave over East Br Indian Creek in Story County, Iowa. It was built in 1962, so it is 63 years old, older 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 429 vehicles a day, roughly 12% of them trucks, projected to reach 429 by 2043. The structure is 57 ft (17.4 m) long and 30 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
Carries527/660th Ave
CrossesEast Br Indian Creek
Location084220202
RouteCounty Highway 0
CountyStory County
StateIowa
Coordinates42.11686, -93.38609
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.1 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length57 ft (17.4 m)
Longest span55 ft (16.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic429 (2022)
Projected traffic429 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 527/660th Ave over East Br Indian Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is 527/660th 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 December 2022.

How much traffic does 527/660th Ave over East Br Indian Creek carry?

About 429 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is 527/660th Ave over East Br Indian Creek?

The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.8 m) and a deck 30 ft wide.

Who owns 527/660th Ave over East Br Indian Creek?

It is owned by the County Highway Agency.