US Bridges

Echo Ave over Small Stream

Good

Mitchell County, Iowa · 098183502 · Structure no. 000000000248221

Built
1987
38 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

Echo Ave over Small Stream is a concrete tee beam carrying Echo Ave over Small Stream in Mitchell County, Iowa. It was built in 1987, so it is 38 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33 vehicles a day, projected to reach 33 by 2043. The structure is 38 ft (11.6 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesEcho Ave
CrossesSmall Stream
Location098183502
RouteCounty Highway 0
StateIowa
Coordinates43.26774, -92.9449
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Echo Ave over Small Stream built?

It was built in 1987, making it 38 years old in 2025.

What condition is Echo Ave 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 December 2023.

How much traffic does Echo Ave over Small Stream carry?

About 33 vehicles per day (2022 count).

How long is Echo Ave over Small Stream?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 27 ft wide.

Who owns Echo Ave over Small Stream?

It is owned by the County Highway Agency.