US Bridges

Rampart Ave over Small Stream

Poor

Mitchell County, Iowa · 099161202 · Structure no. 000000000248471

Built
1974
51 years old
Condition
Poor
inspected December 2023
Type
Channel Beam
Concrete
Length
50 ft
2 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Rampart Ave over Small Stream is a concrete channel beam carrying Rampart Ave over Small Stream in Mitchell County, Iowa. It was built in 1974, so it is 51 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 59 vehicles a day, projected to reach 59 by 2043. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRampart Ave
CrossesSmall Stream
Location099161202
RouteCounty Highway 0
CountyMitchell County
StateIowa
Coordinates43.4044, -92.6927
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating55 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length50 ft (15.2 m)
Longest span24 ft (7.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2043
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rampart Ave over Small Stream built?

It was built in 1974, making it 51 years old in 2025.

What condition is Rampart Ave over Small Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does Rampart Ave over Small Stream carry?

About 59 vehicles per day (2022 count).

How long is Rampart Ave over Small Stream?

The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns Rampart Ave over Small Stream?

It is owned by the County Highway Agency.