US Bridges

Ia 210 over Trib of Big Creek

Fair

Boone County, Iowa · 1.4 Mi. E of E Jct. Ia 17 · Structure no. 000000000076950

Built
1966
59 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
2,230
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 210 over Trib of Big Creek is a concrete continuous culvert carrying Ia 210 over Trib of Big Creek in Boone 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 2,230 vehicles a day, roughly 10% of them trucks, projected to reach 2,230 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIa 210
CrossesTrib of Big Creek
Location1.4 Mi. E of E Jct. Ia 17
RouteState Highway 210
CountyBoone County
StateIowa
Coordinates41.87803, -93.78902
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 21 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,230 (2022)
Projected traffic2,230 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 210 over Trib of Big Creek built?

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

What condition is Ia 210 over Trib of Big 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 August 2024.

How much traffic does Ia 210 over Trib of Big Creek carry?

About 2,230 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 210 over Trib of Big Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 210 over Trib of Big Creek?

It is owned by the State Highway Agency.