US Bridges

Swisherview Dr. over Small Stream

Good

Johnson County, Iowa · 000000000 · Structure no. 000000000502760

Built
1900
125 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
1,168
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Swisherview Dr. over Small Stream is a concrete continuous culvert carrying Swisherview Dr. over Small Stream in Johnson County, Iowa. It was built in 1900, so it is 125 years old, older 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 1,168 vehicles a day, roughly 3% of them trucks, projected to reach 1,168 by 2044. The structure is 21 ft (6.4 m) long and 24 ft wide.

CarriesSwisherview Dr.
CrossesSmall Stream
Location000000000
RouteCity Street 0
StateIowa
Coordinates41.84574, -91.70022
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,168 (2022)
Projected traffic1,168 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Swisherview Dr. over Small Stream built?

It was built in 1900, making it 125 years old in 2025.

What condition is Swisherview Dr. over Small Stream 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 October 2024.

How much traffic does Swisherview Dr. over Small Stream carry?

About 1,168 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Swisherview Dr. over Small Stream?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m) and a deck 24 ft wide.

Who owns Swisherview Dr. over Small Stream?

It is owned by the City or Municipal Highway Agency.