US Bridges

E29 190th ST over I-35

Fair

Story County, Iowa · 4.9 Miles N of Jct. US 30 · Structure no. 000000000049290

Built
1966
59 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
4 main spans
Daily traffic
1,845
2022 count
Owner
State
State Highway Agency

About this bridge

E29 190th ST over I-35 is a prestressed concrete stringer/multi-beam or girder carrying E29 190th ST over I-35 in Story County, Iowa. It was built in 1966, so it is 59 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 1,845 vehicles a day, projected to reach 1,845 by 2043. The structure is 218 ft (66.4 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesE29 190th ST
CrossesI-35
Location4.9 Miles N of Jct. US 30
RouteCounty Highway 0
CountyStory County
StateIowa
Coordinates42.07793, -93.56734
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.3 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length218 ft (66.4 m)
Longest span69 ft (21 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,845 (2022)
Projected traffic1,845 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.2 mi (10 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 E29 190th ST over I-35 built?

It was built in 1966, making it 59 years old in 2025.

What condition is E29 190th ST 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 November 2023.

How much traffic does E29 190th ST over I-35 carry?

About 1,845 vehicles per day (2022 count).

How long is E29 190th ST over I-35?

The structure is 218 ft (66.4 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns E29 190th ST over I-35?

It is owned by the State Highway Agency.