US Bridges

County Road 664 over Trib to N Fabius R

Poor

Scotland County, Missouri · S 25 T 66 N R 13 W · Structure no. 14311

Built
1991
34 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 664 over Trib to N Fabius R is a steel stringer/multi-beam or girder carrying County Road 664 over Trib to N Fabius R in Scotland County, Missouri. It was built in 1991, so it is 34 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 31 by 2044. The structure is 47 ft (14.3 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 664
CrossesTrib to N Fabius R
LocationS 25 T 66 N R 13 W
RouteCounty Highway 63
Coordinates40.49514, -92.29456
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 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 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 rating65.5 US tons
Inventory rating43.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length47 ft (14.3 m)
Longest span41 ft (12.5 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic31 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$260,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 664 over Trib to N Fabius R built?

It was built in 1991, making it 34 years old in 2025.

What condition is County Road 664 over Trib to N Fabius R 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 June 2023.

How much traffic does County Road 664 over Trib to N Fabius R carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County Road 664 over Trib to N Fabius R?

The structure is 47 ft (14.3 m) long with a longest span of 41 ft (12.5 m) and a deck 21 ft wide.

Who owns County Road 664 over Trib to N Fabius R?

It is owned by the County Highway Agency.