US Bridges

Ia 13 over Heatons Creek

Fair

Linn County, Iowa · 2.6 Mi. S of S JCT SR D62 · Structure no. 000000000033681

Built
1976
49 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
5,600
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 13 over Heatons Creek is a concrete continuous culvert carrying Ia 13 over Heatons Creek in Linn County, Iowa. It was built in 1976, so it is 49 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 5,600 vehicles a day, roughly 11% of them trucks, projected to reach 5,600 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesIa 13
CrossesHeatons Creek
Location2.6 Mi. S of S JCT SR D62
RouteState Highway 13
CountyLinn County
StateIowa
Coordinates42.2409, -91.52934
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.1 US tons
Inventory rating30.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2022)
Projected traffic5,600 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 13 over Heatons Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ia 13 over Heatons 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 June 2024.

How much traffic does Ia 13 over Heatons Creek carry?

About 5,600 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 13 over Heatons Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Ia 13 over Heatons Creek?

It is owned by the State Highway Agency.