US Bridges

Lark Ave over US 18

Good

Cerro Gordo County, Iowa · 3.4 Mi. E of Jct. I-35 · Structure no. 000000000601980

Built
1998
27 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
225 ft
2 main spans
Daily traffic
786
2022 count
Owner
State
State Highway Agency

About this bridge

Lark Ave over US 18 is a prestressed concrete stringer/multi-beam or girder carrying Lark Ave over US 18 in Cerro Gordo County, Iowa. It was built in 1998, so it is 27 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 786 vehicles a day, projected to reach 786 by 2043. The structure is 225 ft (68.6 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLark Ave
CrossesUS 18
Location3.4 Mi. E of Jct. I-35
RouteCounty Highway 0
CountyCerro Gordo County
StateIowa
Coordinates43.10512, -93.28052
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span111 ft (33.8 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic786 (2022)
Projected traffic786 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lark Ave over US 18 built?

It was built in 1998, making it 27 years old in 2025.

What condition is Lark Ave over US 18 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Lark Ave over US 18 carry?

About 786 vehicles per day (2022 count).

How long is Lark Ave over US 18?

The structure is 225 ft (68.6 m) long with a longest span of 111 ft (33.8 m) and a deck 33 ft wide.

Who owns Lark Ave over US 18?

It is owned by the State Highway Agency.