US Bridges

US 67 S over Mississippi Rvr BNSF RR

Fair

St. Charles County, Missouri · S 25 T 48 N R 7 E · Structure no. 3497

Built
1994
31 years old
Condition
Fair
inspected June 2024
Type
Stayed Girder
Steel Continuous
Length
4,620 ft
3 main spans
Daily traffic
26,860
2024 count
Owner
State
State Highway Agency

About this bridge

US 67 S over Mississippi Rvr BNSF RR is a steel continuous stayed girder carrying US 67 S over Mississippi Rvr BNSF RR in St. Charles County, Missouri. It was built in 1994, so it is 31 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 26,860 vehicles a day, roughly 5% of them trucks, projected to reach 45,662 by 2044. The structure is 4,620 ft (1,408.2 m) long and 86 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 67 S
CrossesMississippi Rvr BNSF RR
LocationS 25 T 48 N R 7 E
RouteU.S. Route 67
CountySt. Charles County
StateMissouri
Coordinates38.88081, -90.18148
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStayed Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3 (+19 approach)
Design loadHS 20 + Mod
Structure length4,620 ft (1,408.2 m)
Longest span756 ft (230.4 m)
Deck width86 ft (26.3 m)
Roadway width81 ft (24.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,860 (2024)
Projected traffic45,662 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 67 S over Mississippi Rvr BNSF RR built?

It was built in 1994, making it 31 years old in 2025.

What condition is US 67 S over Mississippi Rvr BNSF RR 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 June 2024.

How much traffic does US 67 S over Mississippi Rvr BNSF RR carry?

About 26,860 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is US 67 S over Mississippi Rvr BNSF RR?

The structure is 4,620 ft (1,408.2 m) long with a longest span of 756 ft (230.4 m) and a deck 86 ft wide.

Who owns US 67 S over Mississippi Rvr BNSF RR?

It is owned by the State Highway Agency.