US Bridges

County RD 1222 over Turnback CR

PoorPosted for load

Lawrence County, Missouri · S 34 T 29 N R 25 W · Structure no. 20988

Built
1920
105 years old
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
226
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1222 over Turnback CR is a steel stringer/multi-beam or girder carrying County RD 1222 over Turnback CR in Lawrence County, Missouri. It was built in 1920, so it is 105 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 226 vehicles a day, roughly 10% of them trucks, projected to reach 316 by 2043. The structure is 36 ft (11 m) long and 14 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCounty RD 1222
CrossesTurnback CR
LocationS 34 T 29 N R 25 W
RouteCounty Highway 284
CountyLawrence County
StateMissouri
Coordinates37.17656, -93.65777
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating28.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic226 (2023)
Projected traffic316 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$327,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1222 over Turnback CR built?

It was built in 1920, making it 105 years old in 2025.

What condition is County RD 1222 over Turnback 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 March 2023.

How much traffic does County RD 1222 over Turnback CR carry?

About 226 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1222 over Turnback CR?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 14 ft wide.

Who owns County RD 1222 over Turnback CR?

It is owned by the County Highway Agency.