US Bridges

Jonquil over Calmus Creek

Fair

Cerro Gordo County, Iowa · 097212702 · Structure no. 000000000106890

Built
1974
51 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

Jonquil over Calmus Creek is a concrete culvert carrying Jonquil over Calmus Creek in Cerro Gordo County, Iowa. It was built in 1974, so it is 51 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 6 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 41 vehicles a day, projected to reach 41 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesJonquil
CrossesCalmus Creek
Location097212702
RouteCounty Highway 0
StateIowa
Coordinates43.19565, -93.31992
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.6 US tons
Inventory rating23.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length38 ft (11.6 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 traffic41 (2022)
Projected traffic41 by 2044
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jonquil over Calmus Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Jonquil over Calmus 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 January 2024.

How much traffic does Jonquil over Calmus Creek carry?

About 41 vehicles per day (2022 count).

How long is Jonquil over Calmus Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Jonquil over Calmus Creek?

It is owned by the County Highway Agency.