US Bridges

Old Lincoln HWY over Lapworth Creek

Fair

Pottawattamie County, Iowa · 076443608 · Structure no. 000000000043970

Built
1942
83 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
2,759
2022 count
Owner
County
County Highway Agency

About this bridge

Old Lincoln HWY over Lapworth Creek is a concrete continuous culvert carrying Old Lincoln HWY over Lapworth Creek in Pottawattamie County, Iowa. It was built in 1942, so it is 83 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 2,759 vehicles a day, roughly 10% of them trucks, projected to reach 2,759 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesOld Lincoln HWY
CrossesLapworth Creek
Location076443608
RouteCounty Highway 0
StateIowa
Coordinates41.34573, -95.85477
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length24 ft (7.3 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 traffic2,759 (2022)
Projected traffic2,759 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Lincoln HWY over Lapworth Creek built?

It was built in 1942, making it 83 years old in 2025.

What condition is Old Lincoln HWY over Lapworth Creek 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 April 2024.

How much traffic does Old Lincoln HWY over Lapworth Creek carry?

About 2,759 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Old Lincoln HWY over Lapworth Creek?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Old Lincoln HWY over Lapworth Creek?

It is owned by the County Highway Agency.