US Bridges

SB I-35 over Cerro Gordo County Trail

Fair

Cerro Gordo County, Iowa · 0.7 Mi. N of Jct. SR B65 · Structure no. 000000000602215

Built
1972
53 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
8,850
2022 count
Owner
State
State Highway Agency

About this bridge

SB I-35 over Cerro Gordo County Trail is a prestressed concrete stringer/multi-beam or girder carrying SB I-35 over Cerro Gordo County Trail 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 8,850 vehicles a day, roughly 29% of them trucks, projected to reach 8,850 by 2044. The structure is 179 ft (54.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB I-35
CrossesCerro Gordo County Trail
Location0.7 Mi. N of Jct. SR B65
RouteInterstate 35
CountyCerro Gordo County
StateIowa
Coordinates42.95379, -93.35091
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.4 US tons
Inventory rating45.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length179 ft (54.6 m)
Longest span65 ft (19.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,850 (2022)
Projected traffic8,850 by 2044
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SB I-35 over Cerro Gordo County Trail built?

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

What condition is SB I-35 over Cerro Gordo County Trail 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 February 2024.

How much traffic does SB I-35 over Cerro Gordo County Trail carry?

About 8,850 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is SB I-35 over Cerro Gordo County Trail?

The structure is 179 ft (54.6 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.

Who owns SB I-35 over Cerro Gordo County Trail?

It is owned by the State Highway Agency.