US Bridges

W 66th ST S over Small Stream

Good

Jasper County, Iowa · 079201404 · Structure no. 000000000197141

Built
2019
6 years old
Condition
Good
inspected May 2022
Type
Slab
Steel
Length
52 ft
1 main span
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

W 66th ST S over Small Stream is a steel slab carrying W 66th ST S over Small Stream in Jasper 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 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 30 vehicles a day, projected to reach 30 by 2043. The structure is 52 ft (15.9 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesW 66th ST S
CrossesSmall Stream
Location079201404
RouteCounty Highway 0
CountyJasper County
StateIowa
Coordinates41.6553, -93.14991
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 36 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 alignment7: Better than present minimum criteria
Operating rating60.3 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 W 66th ST S over Small Stream built?

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

What condition is W 66th ST S 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 May 2022.

How much traffic does W 66th ST S over Small Stream carry?

About 30 vehicles per day (2022 count).

How long is W 66th ST S over Small Stream?

The structure is 52 ft (15.9 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns W 66th ST S over Small Stream?

It is owned by the County Highway Agency.