US Bridges

NB I-35 over Bailey Creek

Fair

Cerro Gordo County, Iowa · 2.7 Mi. N Jct. SR C13 · Structure no. 000000000602200

Built
1971
54 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
8,800
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-35 over Bailey Creek is a prestressed concrete stringer/multi-beam or girder carrying NB I-35 over Bailey Creek in Cerro Gordo County, Iowa. It was built in 1971, so it is 54 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 5 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 8,800 vehicles a day, roughly 30% of them trucks, projected to reach 8,800 by 2043. The structure is 98 ft (29.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNB I-35
CrossesBailey Creek
Location2.7 Mi. N Jct. SR C13
RouteInterstate 35
StateIowa
Coordinates42.93092, -93.35064
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.2 US tons
Inventory rating27.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span95 ft (29 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2023)
Projected traffic8,800 by 2043
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB I-35 over Bailey Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is NB I-35 over Bailey 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 July 2024.

How much traffic does NB I-35 over Bailey Creek carry?

About 8,800 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is NB I-35 over Bailey Creek?

The structure is 98 ft (29.9 m) long with a longest span of 95 ft (29 m) and a deck 43 ft wide.

Who owns NB I-35 over Bailey Creek?

It is owned by the State Highway Agency.