US Bridges

HWY 382 over Small Natural Stream

Fair

Johnson County, Iowa · 081061407 · Structure no. 000000000031900

Built
1962
63 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
3,810
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY 382 over Small Natural Stream is a concrete continuous culvert carrying HWY 382 over Small Natural Stream in Johnson 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 3,810 vehicles a day, roughly 9% of them trucks, projected to reach 3,810 by 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesHWY 382
CrossesSmall Natural Stream
Location081061407
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.8103, -91.50393
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,810 (2022)
Projected traffic3,810 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal 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 HWY 382 over Small Natural Stream built?

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

What condition is HWY 382 over Small Natural Stream 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 July 2023.

How much traffic does HWY 382 over Small Natural Stream carry?

About 3,810 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is HWY 382 over Small Natural Stream?

The structure is 38 ft (11.6 m) long with a longest span of 10 ft (3 m).

Who owns HWY 382 over Small Natural Stream?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.