US Bridges

Marigold Ave over Br of Rock CR

Fair

Saline County, Missouri · S 8 T 50 N R 20 W · Structure no. 18074

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

Marigold Ave over Br of Rock CR is a steel stringer/multi-beam or girder carrying Marigold Ave over Br of Rock CR in Saline County, Missouri. It was built in 1997, so it is 28 years old, younger 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 66 by 2044. The structure is 36 ft (11 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMarigold Ave
CrossesBr of Rock CR
LocationS 8 T 50 N R 20 W
RouteCounty Highway 172
CountySaline County
StateMissouri
Coordinates39.13807, -93.11825
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating76.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span29 ft (8.8 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic66 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Marigold Ave over Br of Rock CR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Marigold Ave over Br of Rock 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 March 2024.

How much traffic does Marigold Ave over Br of Rock CR carry?

About 60 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Marigold Ave over Br of Rock CR?

The structure is 36 ft (11 m) long with a longest span of 29 ft (8.8 m) and a deck 19 ft wide.

Who owns Marigold Ave over Br of Rock CR?

It is owned by the County Highway Agency.