US Bridges

County RD 9030 over Howell CR

Good

Howell County, Missouri · S 6 T 23 N R 7 W · Structure no. 33375

Built
2009
16 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 9030 over Howell CR is a prestressed concrete box beam or girders - multiple carrying County RD 9030 over Howell CR in Howell County, Missouri. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 250 vehicles a day, roughly 10% of them trucks, projected to reach 325 by 2043. The structure is 66 ft (20.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty RD 9030
CrossesHowell CR
LocationS 6 T 23 N R 7 W
RouteCounty Highway 605
CountyHowell County
StateMissouri
Coordinates36.69113, -91.77679
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68.5 US tons
Inventory rating41.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span62 ft (19 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic325 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 9030 over Howell CR built?

It was built in 2009, making it 16 years old in 2025.

What condition is County RD 9030 over Howell CR 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 November 2024.

How much traffic does County RD 9030 over Howell CR carry?

About 250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 9030 over Howell CR?

The structure is 66 ft (20.1 m) long with a longest span of 62 ft (19 m) and a deck 24 ft wide.

Who owns County RD 9030 over Howell CR?

It is owned by the County Highway Agency.