US Bridges

Rt a E over Cyclone Hollow

Good

Washington County, Missouri · S 29 T 40 N R 1 E · Structure no. 37021

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
290
2024 count
Owner
State
State Highway Agency

About this bridge

Rt a E over Cyclone Hollow is a prestressed concrete tee beam carrying Rt a E over Cyclone Hollow in Washington County, Missouri. It was built in 2023, so it is 2 years old, younger than the Missouri average of 45.1 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 290 vehicles a day, roughly 10% of them trucks, projected to reach 406 by 2044. The structure is 83 ft (25.3 m) long and 28 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesRt a E
CrossesCyclone Hollow
LocationS 29 T 40 N R 1 E
RouteState Highway 0A
Coordinates38.17242, -90.94685
Functional classRural Major 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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span78 ft (23.8 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2024)
Projected traffic406 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt a E over Cyclone Hollow built?

It was built in 2023, making it 2 years old in 2025.

What condition is Rt a E over Cyclone Hollow 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 June 2024.

How much traffic does Rt a E over Cyclone Hollow carry?

About 290 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt a E over Cyclone Hollow?

The structure is 83 ft (25.3 m) long with a longest span of 78 ft (23.8 m) and a deck 28 ft wide.

Who owns Rt a E over Cyclone Hollow?

It is owned by the State Highway Agency.