US Bridges

High Bridge RD over Small Stream

Good

Jackson County, Iowa · 087E40403 · Structure no. 000000000194822

Built
2020
5 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
137
2022 count
Owner
County
County Highway Agency

About this bridge

High Bridge RD over Small Stream is a concrete culvert carrying High Bridge RD over Small Stream in Jackson County, Iowa. It was built in 2020, so it is 5 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 137 vehicles a day, projected to reach 137 by 2043. The structure is 31 ft (9.3 m) long and 28 ft wide.

Location

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CarriesHigh Bridge RD
CrossesSmall Stream
Location087E40403
RouteCounty Highway 0
CountyJackson County
StateIowa
Coordinates42.37441, -90.51133
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length31 ft (9.3 m)
Longest span14 ft (4.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137 (2022)
Projected traffic137 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 High Bridge RD over Small Stream built?

It was built in 2020, making it 5 years old in 2025.

What condition is High Bridge RD 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 November 2022.

How much traffic does High Bridge RD over Small Stream carry?

About 137 vehicles per day (2022 count).

How long is High Bridge RD over Small Stream?

The structure is 31 ft (9.3 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.

Who owns High Bridge RD over Small Stream?

It is owned by the County Highway Agency.