US Bridges

Towers RD over Baltic CR

Fair

St. Charles County, Missouri · S 19 T 46 N R 12 E · Structure no. 30674

Built
2004
21 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
33 ft
2 main spans
Daily traffic
7,169
2024 count
Owner
County
County Highway Agency

About this bridge

Towers RD over Baltic CR is a concrete continuous culvert carrying Towers RD over Baltic CR in St. Charles County, Missouri. It was built in 2004, so it is 21 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 7,169 vehicles a day, roughly 3% of them trucks, projected to reach 11,112 by 2044. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTowers RD
CrossesBaltic CR
LocationS 19 T 46 N R 12 E
RouteCounty Highway 0
CountySt. Charles County
StateMissouri
Coordinates38.72077, -90.61625
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating48.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,169 (2024)
Projected traffic11,112 by 2044
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Towers RD over Baltic CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Towers RD over Baltic 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 February 2024.

How much traffic does Towers RD over Baltic CR carry?

About 7,169 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Towers RD over Baltic CR?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m).

Who owns Towers RD over Baltic CR?

It is owned by the County Highway Agency.