Morton RD over Little CR

Fair

Wright County, Missouri · S 15 T 30 N R 15 W · Structure no. 21492

Built: 1940; 85 years old, rebuilt 1987
Condition: Fair; inspected December 2024
Type: Slab; Concrete Continuous
Length: 27 ft; 2 main spans
Daily traffic: 30; 2023 count
Owner: County; County Highway Agency

About this bridge

Morton RD over Little CR is a concrete continuous slab carrying Morton RD over Little CR in Wright County, Missouri. It was built in 1940 and reconstructed in 1987, so it is 85 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 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, roughly 10% of them trucks, projected to reach 42 by 2043. The structure is 27 ft (8.2 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMorton RD

CrossesLittle CR

LocationS 15 T 30 N R 15 W

RouteCounty Highway 309

CountyWright County

StateMissouri

Coordinates37.30479, -92.57686

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionDecember 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry7: Better than present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating54.6 US tons

Inventory rating17.9 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans2

Design loadOther

Structure length27 ft (8.2 m)

Longest span13 ft (4 m)

Deck width16 ft (4.9 m)

Roadway width15 ft (4.7 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)

Projected traffic42 by 2043

Trucks10%

Lanes on structure1

Traffic directionOne-lane bridge for two-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 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 Morton RD over Little CR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1987.

What condition is Morton RD over Little 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 December 2024.

How much traffic does Morton RD over Little CR carry?

About 30 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Morton RD over Little CR?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m) and a deck 16 ft wide.

Who owns Morton RD over Little CR?

It is owned by the County Highway Agency.