US Bridges

Mo 129 S over Spring CR

Fair

Sullivan County, Missouri · S 19 T 64 N R 18 W · Structure no. 9922

Built
1950
75 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
25 ft
3 main spans
Daily traffic
78
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 129 S over Spring CR is a concrete continuous culvert carrying Mo 129 S over Spring CR in Sullivan County, Missouri. It was built in 1950, so it is 75 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 78 vehicles a day, roughly 14% of them trucks, projected to reach 98 by 2044. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 129 S
CrossesSpring CR
LocationS 19 T 64 N R 18 W
RouteState Highway 129
CountySullivan County
StateMissouri
Coordinates40.33828, -92.95901
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 10
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2024)
Projected traffic98 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 129 S over Spring CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is Mo 129 S over Spring CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Mo 129 S over Spring CR carry?

About 78 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 129 S over Spring CR?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m) and a deck 22 ft wide.

Who owns Mo 129 S over Spring CR?

It is owned by the State Highway Agency.