US Bridges

Inca Lane over Pigeon Creek

PoorClosed to traffic

Pottawattamie County, Iowa · 076443403 · Structure no. 000000000289300

Built
1924
101 years old
Condition
Poor
inspected May 2017
Type
Truss - Thru
Steel
Length
125 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Inca Lane over Pigeon Creek is a steel truss - thru carrying Inca Lane over Pigeon Creek in Pottawattamie County, Iowa. It was built in 1924, so it is 101 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 3 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. Its operating status is: closed to all traffic.

It carries about 11 vehicles a day, projected to reach 11 by 2043. The structure is 125 ft (38.1 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesInca Lane
CrossesPigeon Creek
Location076443403
RouteCounty Highway 0
CountyPottawattamie County
StateIowa
Coordinates41.34396, -95.88675
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2017
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span120 ft (36.6 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck13 ft (4.1 m)

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Inca Lane over Pigeon Creek built?

It was built in 1924, making it 101 years old in 2025.

What condition is Inca Lane over Pigeon Creek 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 May 2017.

How much traffic does Inca Lane over Pigeon Creek carry?

About 11 vehicles per day (2022 count).

How long is Inca Lane over Pigeon Creek?

The structure is 125 ft (38.1 m) long with a longest span of 120 ft (36.6 m) and a deck 16 ft wide.

Who owns Inca Lane over Pigeon Creek?

It is owned by the County Highway Agency.