US Bridges

100th ST over Stream

Good

Chickasaw County, Iowa · 097142201 · Structure no. 000000000113381

Built
2024
1 years old
Condition
Good
inspected November 2024
Type
Slab
Steel
Length
33 ft
1 main span
Daily traffic
53
2023 count
Owner
County
County Highway Agency

About this bridge

100th ST over Stream is a steel slab carrying 100th ST over Stream in Chickasaw County, Iowa. It was built in 2024, so it is 1 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 53 vehicles a day, projected to reach 53 by 2043. The structure is 33 ft (10.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries100th ST
CrossesStream
Location097142201
RouteCounty Highway 0
CountyChickasaw County
StateIowa
Coordinates43.21294, -92.48312
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.5 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53 (2023)
Projected traffic53 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 100th ST over Stream built?

It was built in 2024, making it 1 years old in 2025.

What condition is 100th ST over 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 2024.

How much traffic does 100th ST over Stream carry?

About 53 vehicles per day (2023 count).

How long is 100th ST over Stream?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.5 m) and a deck 25 ft wide.

Who owns 100th ST over Stream?

It is owned by the County Highway Agency.