US Bridges

SW601 over Deepwater CR

Fair

Henry County, Missouri · S 1 T 40 N R 27 W · Structure no. 24888

Built
1975
50 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
253 ft
5 main spans
Daily traffic
187
2023 count
Owner
County
County Highway Agency

About this bridge

SW601 over Deepwater CR is a concrete continuous slab carrying SW601 over Deepwater CR in Henry County, Missouri. It was built in 1975, so it is 50 years old, older than the Missouri average of 45.1 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 187 vehicles a day, roughly 10% of them trucks, projected to reach 262 by 2043. The structure is 253 ft (77.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSW601
CrossesDeepwater CR
LocationS 1 T 40 N R 27 W
RouteCounty Highway 570
CountyHenry County
StateMissouri
Coordinates38.29508, -93.86835
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 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 rating35.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length253 ft (77.1 m)
Longest span56 ft (17.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic187 (2023)
Projected traffic262 by 2043
Trucks10%
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 SW601 over Deepwater CR built?

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

What condition is SW601 over Deepwater CR 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 March 2023.

How much traffic does SW601 over Deepwater CR carry?

About 187 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW601 over Deepwater CR?

The structure is 253 ft (77.1 m) long with a longest span of 56 ft (17.1 m) and a deck 31 ft wide.

Who owns SW601 over Deepwater CR?

It is owned by the County Highway Agency.