Woodlawn Ave over Lake Creek

Fair

Calhoun County, Iowa · 086330704 · Structure no. 000000000006951

Built: 1996; 29 years old
Condition: Fair; inspected July 2023
Type: Slab; Concrete Continuous
Length: 128 ft; 3 main spans
Daily traffic: 755; 2022 count
Owner: County; County Highway Agency

About this bridge

Woodlawn Ave over Lake Creek is a concrete continuous slab carrying Woodlawn Ave over Lake Creek in Calhoun County, Iowa. It was built in 1996, so it is 29 years old, younger 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 755 vehicles a day, roughly 15% of them trucks, projected to reach 755 by 2043. The structure is 128 ft (39 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesWoodlawn Ave

CrossesLake Creek

Location086330704

RouteCity Street 0

CountyCalhoun County

StateIowa

Coordinates42.28073, -94.73145

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.

Component	Rating	Meaning
Deck	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionJuly 2023

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

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating97.6 US tons

Inventory rating58.3 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length128 ft (39 m)

Longest span49 ft (14.9 m)

Deck width31 ft (9.3 m)

Roadway width31 ft (9.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic755 (2022)

Projected traffic755 by 2043

Trucks15%

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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost$2.1 million (2023 estimate)

NavigationNo navigation control on waterway

Frequently asked questions

When was Woodlawn Ave over Lake Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Woodlawn Ave over Lake 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 July 2023.

How much traffic does Woodlawn Ave over Lake Creek carry?

About 755 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Woodlawn Ave over Lake Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns Woodlawn Ave over Lake Creek?

It is owned by the County Highway Agency.