US Bridges

B 33 170th ST over Beaver Creek

Good

Chickasaw County, Iowa · 096143001 · Structure no. 000000000112871

Built
2024
1 years old
Condition
Good
inspected October 2024
Type
Slab
Steel
Length
50 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

B 33 170th ST over Beaver Creek is a steel slab carrying B 33 170th ST over Beaver Creek in Chickasaw County, Iowa. It was built in 2024, so it is 1 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, projected to reach 45 by 2043. The structure is 50 ft (15.2 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesB 33 170th ST
CrossesBeaver Creek
Location096143001
RouteCounty Highway 0
StateIowa
Coordinates43.11248, -92.54633
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic45 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was B 33 170th ST over Beaver Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is B 33 170th ST over Beaver Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does B 33 170th ST over Beaver Creek carry?

About 45 vehicles per day (2023 count).

How long is B 33 170th ST over Beaver Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 25 ft wide.

Who owns B 33 170th ST over Beaver Creek?

It is owned by the County Highway Agency.