US Bridges

Broad ST over Small Natural Stream

Good

Mitchell County, Iowa · 000000000 · Structure no. 000000000036621

Built
2019
6 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
1,489
2022 count
Owner
County
County Highway Agency

About this bridge

Broad ST over Small Natural Stream is a concrete culvert carrying Broad ST over Small Natural Stream in Mitchell County, Iowa. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,489 vehicles a day, projected to reach 1,489 by 2043. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBroad ST
CrossesSmall Natural Stream
Location000000000
RouteCity Street 0
CountyMitchell County
StateIowa
Coordinates43.43677, -92.78228
Functional classRural Major 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 protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length35 ft (10.7 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 traffic1,489 (2022)
Projected traffic1,489 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Broad ST over Small Natural Stream built?

It was built in 2019, making it 6 years old in 2025.

What condition is Broad ST over Small Natural 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 December 2023.

How much traffic does Broad ST over Small Natural Stream carry?

About 1,489 vehicles per day (2022 count).

How long is Broad ST over Small Natural Stream?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m).

Who owns Broad ST over Small Natural Stream?

It is owned by the County Highway Agency.