US Bridges

County RD 1247 over Sac Rvr

PoorPosted for load

Lawrence County, Missouri · S 1 T 29 N R 25 W · Structure no. 15334

Built
1920
105 years old
Condition
Poor
inspected March 2023
Type
Slab
Concrete
Length
80 ft
4 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1247 over Sac Rvr is a concrete slab carrying County RD 1247 over Sac Rvr 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2043. The structure is 80 ft (24.4 m) long and 16 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty RD 1247
CrossesSac Rvr
LocationS 1 T 29 N R 25 W
RouteCounty Highway 91
CountyLawrence County
StateMissouri
Coordinates37.26053, -93.60842
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating24.8 US tons
Inventory rating9.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 10
Structure length80 ft (24.4 m)
Longest span18 ft (5.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic28 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$599,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1247 over Sac Rvr built?

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

What condition is County RD 1247 over Sac Rvr 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 1247 over Sac Rvr carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1247 over Sac Rvr?

The structure is 80 ft (24.4 m) long with a longest span of 18 ft (5.5 m) and a deck 16 ft wide.

Who owns County RD 1247 over Sac Rvr?

It is owned by the County Highway Agency.