US Bridges

Mo 3 S over Sweet Springs CR

Poor

Randolph County, Missouri · S 17 T 53 N R 15 W · Structure no. 5378

Built
1931
94 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
4 main spans
Daily traffic
1,278
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 3 S over Sweet Springs CR is a steel stringer/multi-beam or girder carrying Mo 3 S over Sweet Springs CR in Randolph County, Missouri. It was built in 1931, so it is 94 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.

It carries about 1,278 vehicles a day, roughly 27% of them trucks, projected to reach 1,598 by 2044. The structure is 150 ft (45.7 m) long and 25 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesMo 3 S
CrossesSweet Springs CR
LocationS 17 T 53 N R 15 W
RouteState Highway 3
Coordinates39.39273, -92.61362
Functional classRural Major 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.8 US tons
Inventory rating17.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length150 ft (45.7 m)
Longest span52 ft (16 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,278 (2024)
Projected traffic1,598 by 2044
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 3 S over Sweet Springs CR built?

It was built in 1931, making it 94 years old in 2025.

What condition is Mo 3 S over Sweet Springs 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 January 2025.

How much traffic does Mo 3 S over Sweet Springs CR carry?

About 1,278 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Mo 3 S over Sweet Springs CR?

The structure is 150 ft (45.7 m) long with a longest span of 52 ft (16 m) and a deck 25 ft wide.

Who owns Mo 3 S over Sweet Springs CR?

It is owned by the State Highway Agency.