US Bridges

I-35 NB Off Rmp over Beaver Dam Creek

Fair

Cerro Gordo County, Iowa · 0.1 Mi. S of Jct. SR B60 · Structure no. 000000000602235

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
130
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 NB Off Rmp over Beaver Dam Creek is a concrete continuous culvert carrying I-35 NB Off Rmp over Beaver Dam Creek in Cerro Gordo County, Iowa. It was built in 1972, so it is 53 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 130 vehicles a day, roughly 19% of them trucks, projected to reach 130 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI-35 NB Off Rmp
CrossesBeaver Dam Creek
Location0.1 Mi. S of Jct. SR B60
RouteInterstate 35
StateIowa
Coordinates42.97922, -93.34271
Functional classRural Principal Arterial - Interstate

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 inspectionMarch 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 alignment9: Superior to present desirable criteria
Operating rating99.8 US tons
Inventory rating99.8 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 traffic130 (2022)
Projected traffic130 by 2044
Trucks19%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 I-35 NB Off Rmp over Beaver Dam Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-35 NB Off Rmp over Beaver Dam 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 March 2024.

How much traffic does I-35 NB Off Rmp over Beaver Dam Creek carry?

About 130 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is I-35 NB Off Rmp over Beaver Dam Creek?

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

Who owns I-35 NB Off Rmp over Beaver Dam Creek?

It is owned by the State Highway Agency.