US Bridges

Ia 210 over I-35

Fair

Story County, Iowa · At Jct. I-35 · Structure no. 000000000049010

Built
1964
61 years old, rebuilt 2017
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
219 ft
4 main spans
Daily traffic
4,220
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 210 over I-35 is a prestressed concrete stringer/multi-beam or girder carrying Ia 210 over I-35 in Story County, Iowa. It was built in 1964 and reconstructed in 2017, so it is 61 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 4,220 vehicles a day, roughly 6% of them trucks, projected to reach 4,220 by 2043. The structure is 219 ft (66.8 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIa 210
CrossesI-35
LocationAt Jct. I-35
RouteState Highway 210
CountyStory County
StateIowa
Coordinates41.8778, -93.5716
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length219 ft (66.8 m)
Longest span68 ft (20.7 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,220 (2022)
Projected traffic4,220 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed11.8 mi (19 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 Ia 210 over I-35 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2017.

What condition is Ia 210 over I-35 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 September 2023.

How much traffic does Ia 210 over I-35 carry?

About 4,220 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Ia 210 over I-35?

The structure is 219 ft (66.8 m) long with a longest span of 68 ft (20.7 m) and a deck 35 ft wide.

Who owns Ia 210 over I-35?

It is owned by the State Highway Agency.