US Bridges

Monument Ave over Small Stream

Good

Mitchell County, Iowa · 100160804 · Structure no. 000000000248861

Built
1987
38 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
786
2022 count
Owner
County
County Highway Agency

About this bridge

Monument Ave over Small Stream is a concrete continuous slab carrying Monument 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 786 vehicles a day, roughly 18% of them trucks, projected to reach 786 by 2043. The structure is 78 ft (23.8 m) long and 33 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesMonument Ave
CrossesSmall Stream
Location100160804
RouteCounty Highway 0
StateIowa
Coordinates43.49689, -92.77144
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length78 ft (23.8 m)
Longest span29 ft (8.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic786 (2022)
Projected traffic786 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Monument Ave over Small Stream built?

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

What condition is Monument 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 Monument Ave over Small Stream carry?

About 786 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Monument Ave over Small Stream?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns Monument Ave over Small Stream?

It is owned by the County Highway Agency.