US Bridges

410th over Burr Oak Creek

Fair

Mitchell County, Iowa · 099163101 · Structure no. 000000000248581

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

410th over Burr Oak Creek is a concrete channel beam carrying 410th over Burr Oak Creek in Mitchell County, Iowa. It was built in 1975, so it is 50 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 30 vehicles a day, projected to reach 30 by 2043. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries410th
CrossesBurr Oak Creek
Location099163101
RouteCounty Highway 0
CountyMitchell County
StateIowa
Coordinates43.35664, -92.78103
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 410th over Burr Oak Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is 410th over Burr Oak 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 December 2023.

How much traffic does 410th over Burr Oak Creek carry?

About 30 vehicles per day (2022 count).

How long is 410th over Burr Oak Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns 410th over Burr Oak Creek?

It is owned by the County Highway Agency.