US Bridges

Ivory RD over Mussel CR

Poor

Sullivan County, Missouri · S 14 T 61 N R 18 W · Structure no. 22195

Built
1995
30 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Ivory RD over Mussel CR is a steel stringer/multi-beam or girder carrying Ivory RD over Mussel CR in Sullivan County, Missouri. It was built in 1995, so it is 30 years old, younger 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 22 by 2044. The structure is 140 ft (42.7 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesIvory RD
CrossesMussel CR
LocationS 14 T 61 N R 18 W
RouteCounty Highway 344
CountySullivan County
StateMissouri
Coordinates40.08538, -92.87685
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating23.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length140 ft (42.7 m)
Longest span60 ft (18.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic22 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$949,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ivory RD over Mussel CR built?

It was built in 1995, making it 30 years old in 2025.

What condition is Ivory RD over Mussel 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 December 2023.

How much traffic does Ivory RD over Mussel CR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Ivory RD over Mussel CR?

The structure is 140 ft (42.7 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.

Who owns Ivory RD over Mussel CR?

It is owned by the County Highway Agency.