US Bridges

US 61 S over Gibson CR

Poor

Jefferson County, Missouri · S 7 T 41 N R 6 E · Structure no. 4702

Built
1935
90 years old
Condition
Poor
inspected December 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
5,707
2024 count
Owner
State
State Highway Agency

About this bridge

US 61 S over Gibson CR is a concrete culvert carrying US 61 S over Gibson CR in Jefferson County, Missouri. It was built in 1935, so it is 90 years old, older 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 5,707 vehicles a day, roughly 7% of them trucks, projected to reach 9,702 by 2044. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesUS 61 S
CrossesGibson CR
LocationS 7 T 41 N R 6 E
RouteU.S. Route 61
CountyJefferson County
StateMissouri
Coordinates38.30771, -90.3996
Functional classUrban Minor Arterial

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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadOther
Structure length28 ft (8.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,707 (2024)
Projected traffic9,702 by 2044
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$450,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 61 S over Gibson CR built?

It was built in 1935, making it 90 years old in 2025.

What condition is US 61 S over Gibson 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 2024.

How much traffic does US 61 S over Gibson CR carry?

About 5,707 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is US 61 S over Gibson CR?

The structure is 28 ft (8.4 m) long with a longest span of 12 ft (3.7 m).

Who owns US 61 S over Gibson CR?

It is owned by the State Highway Agency.