US Bridges

632nd Ave over West Br Indian Creek

PoorPosted for load

Story County, Iowa · 082220806 · Structure no. 000000000313681

Built
1938
87 years old
Condition
Poor
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
3 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

632nd Ave over West Br Indian Creek is a steel stringer/multi-beam or girder carrying 632nd Ave over West Br Indian Creek in Story County, Iowa. It was built in 1938, so it is 87 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 60 by 2043. The structure is 81 ft (24.7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries632nd Ave
CrossesWest Br Indian Creek
Location082220806
RouteCounty Highway 0
StateIowa
Coordinates41.93172, -93.43994
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating4.9 US tons
Inventory rating3.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span32 ft (9.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 632nd Ave over West Br Indian Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is 632nd Ave over West Br Indian Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2023.

How much traffic does 632nd Ave over West Br Indian Creek carry?

About 60 vehicles per day (2022 count).

How long is 632nd Ave over West Br Indian Creek?

The structure is 81 ft (24.7 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.

Who owns 632nd Ave over West Br Indian Creek?

It is owned by the County Highway Agency.