US Bridges

Lancer Ave over Small Natural Stream

Poor

Mitchell County, Iowa · 099172406 · Structure no. 000000000036610

Built
1925
100 years old, rebuilt 1958
Condition
Poor
inspected December 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,011
2022 count
Owner
County
County Highway Agency

About this bridge

Lancer Ave over Small Natural Stream is a concrete continuous culvert carrying Lancer Ave over Small Natural Stream in Mitchell County, Iowa. It was built in 1925 and reconstructed in 1958, 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 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 1,011 vehicles a day, roughly 15% of them trucks, projected to reach 1,011 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesLancer Ave
CrossesSmall Natural Stream
Location099172406
RouteCounty Highway 0
CountyMitchell County
StateIowa
Coordinates43.38186, -92.81045
Functional classRural Major Collector

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
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.8 US tons
Inventory rating18.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,011 (2022)
Projected traffic1,011 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lancer Ave over Small Natural Stream built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1958.

What condition is Lancer Ave over Small Natural 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 Lancer Ave over Small Natural Stream carry?

About 1,011 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Lancer Ave over Small Natural Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Lancer Ave over Small Natural Stream?

It is owned by the County Highway Agency.