US Bridges

Redwood Ave over Stream

Good

Guthrie County, Iowa · 080310102 · Structure no. 000000000168901

Built
2018
7 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
34
2022 count
Owner
County
County Highway Agency

About this bridge

Redwood Ave over Stream is a concrete continuous culvert carrying Redwood Ave over Stream in Guthrie County, Iowa. It was built in 2018, so it is 7 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 34 vehicles a day, projected to reach 34 by 2041. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRedwood Ave
CrossesStream
Location080310102
RouteCounty Highway 0
CountyGuthrie County
StateIowa
Coordinates41.75995, -94.41574
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2022)
Projected traffic34 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Redwood Ave over Stream built?

It was built in 2018, making it 7 years old in 2025.

What condition is Redwood Ave 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 2021.

How much traffic does Redwood Ave over Stream carry?

About 34 vehicles per day (2022 count).

How long is Redwood Ave over Stream?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns Redwood Ave over Stream?

It is owned by the County Highway Agency.