US Bridges

Second Ave RD over Small Stream

Fair

Clinton County, Iowa · 081051201 · Structure no. 000000000002140

Built
1925
100 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
450
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Second Ave RD over Small Stream is a concrete continuous culvert carrying Second Ave RD over Small Stream in Clinton County, Iowa. It was built in 1925, so it is 100 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 450 vehicles a day, roughly 6% of them trucks, projected to reach 450 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSecond Ave RD
CrossesSmall Stream
Location081051201
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.84464, -90.30733
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.6 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2022)
Projected traffic450 by 2044
Trucks6%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$165,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Second Ave RD over Small Stream built?

It was built in 1925, making it 100 years old in 2025.

What condition is Second Ave RD over Small Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Second Ave RD over Small Stream carry?

About 450 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Second Ave RD over Small Stream?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Second Ave RD over Small Stream?

It is owned by the City or Municipal Highway Agency.