US Bridges

Dogwood Ave over Stream

Good

Clayton County, Iowa · .1 M S 100th ST · Structure no. 000000000121131

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

Dogwood Ave over Stream is a concrete continuous slab carrying Dogwood Ave over Stream in Clayton 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 16 vehicles a day, projected to reach 16 by 2044. The structure is 70 ft (21.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesDogwood Ave
CrossesStream
Location.1 M S 100th ST
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates43.07727, -91.48899
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span28 ft (8.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic16 by 2044
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dogwood Ave over Stream built?

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

What condition is Dogwood 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 September 2024.

How much traffic does Dogwood Ave over Stream carry?

About 16 vehicles per day (2022 count).

How long is Dogwood Ave over Stream?

The structure is 70 ft (21.3 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns Dogwood Ave over Stream?

It is owned by the County Highway Agency.