US Bridges

Mo 147 S over Lit Sugar CR

Poor

Lincoln County, Missouri · S 21 T 49 N R 1 E · Structure no. 6548

Built
1941
84 years old
Condition
Poor
inspected September 2024
Type
Arch - Deck
Concrete
Length
81 ft
3 main spans
Daily traffic
1,738
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 147 S over Lit Sugar CR is a concrete arch - deck carrying Mo 147 S over Lit Sugar CR in Lincoln County, Missouri. It was built in 1941, so it is 84 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 3 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.

It carries about 1,738 vehicles a day, roughly 3% of them trucks, projected to reach 3,476 by 2044. The structure is 81 ft (24.7 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMo 147 S
CrossesLit Sugar CR
LocationS 21 T 49 N R 1 E
RouteState Highway 147
Coordinates39.00802, -90.921
Functional classRural Minor Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.5 US tons
Inventory rating43.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 10
Structure length81 ft (24.7 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,738 (2024)
Projected traffic3,476 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 147 S over Lit Sugar CR built?

It was built in 1941, making it 84 years old in 2025.

What condition is Mo 147 S over Lit Sugar 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 September 2024.

How much traffic does Mo 147 S over Lit Sugar CR carry?

About 1,738 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Mo 147 S over Lit Sugar CR?

The structure is 81 ft (24.7 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns Mo 147 S over Lit Sugar CR?

It is owned by the State Highway Agency.