US Bridges

Terry RD over Trib of Missouri R

Fair

St. Charles County, Missouri · S 59 T 44 N R 2 E · Structure no. 22850

Built
1998
27 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
248
2024 count
Owner
County
County Highway Agency

About this bridge

Terry RD over Trib of Missouri R is a steel stringer/multi-beam or girder carrying Terry RD over Trib of Missouri R in St. Charles County, Missouri. It was built in 1998, so it is 27 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 5 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 248 vehicles a day, roughly 10% of them trucks, projected to reach 546 by 2044. The structure is 42 ft (12.8 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTerry RD
CrossesTrib of Missouri R
LocationS 59 T 44 N R 2 E
RouteCounty Highway 377
Coordinates38.59967, -90.80703
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.4 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2024)
Projected traffic546 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Terry RD over Trib of Missouri R built?

It was built in 1998, making it 27 years old in 2025.

What condition is Terry RD over Trib of Missouri R 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 February 2024.

How much traffic does Terry RD over Trib of Missouri R carry?

About 248 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Terry RD over Trib of Missouri R?

The structure is 42 ft (12.8 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns Terry RD over Trib of Missouri R?

It is owned by the County Highway Agency.