US Bridges

Deer Run RD 646 over Hurricane CR

PoorPosted for load

Lincoln County, Missouri · S 15 T 50 N R 2 E · Structure no. 17586

Built
1961
64 years old
Condition
Poor
inspected July 2024
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
200
2023 count
Owner
County
County Highway Agency

About this bridge

Deer Run RD 646 over Hurricane CR is a concrete culvert carrying Deer Run RD 646 over Hurricane CR in Lincoln County, Missouri. It was built in 1961, so it is 64 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2043. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesDeer Run RD 646
CrossesHurricane CR
LocationS 15 T 50 N R 2 E
RouteCounty Highway 156
CountyLincoln County
StateMissouri
Coordinates39.10463, -90.77545
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length36 ft (11 m)
Longest span17 ft (5.2 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2023)
Projected traffic320 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Deer Run RD 646 over Hurricane CR built?

It was built in 1961, making it 64 years old in 2025.

What condition is Deer Run RD 646 over Hurricane CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Deer Run RD 646 over Hurricane CR carry?

About 200 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Deer Run RD 646 over Hurricane CR?

The structure is 36 ft (11 m) long with a longest span of 17 ft (5.2 m) and a deck 16 ft wide.

Who owns Deer Run RD 646 over Hurricane CR?

It is owned by the County Highway Agency.