US Bridges

US 61 S over Mo 27

Fair

Clark County, Missouri · S 8 T 64 N R 6 W · Structure no. 31567

Built
2006
19 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
270 ft
2 main spans
Daily traffic
571
2024 count
Owner
State
State Highway Agency

About this bridge

US 61 S over Mo 27 is a steel continuous stringer/multi-beam or girder carrying US 61 S over Mo 27 in Clark County, Missouri. It was built in 2006, so it is 19 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 571 vehicles a day, roughly 28% of them trucks, projected to reach 1,085 by 2044. The structure is 270 ft (82.2 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesUS 61 S
CrossesMo 27
LocationS 8 T 64 N R 6 W
RouteU.S. Route 61
Coordinates40.36199, -91.58736
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length270 ft (82.2 m)
Longest span146 ft (44.5 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic571 (2024)
Projected traffic1,085 by 2044
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 61 S over Mo 27 built?

It was built in 2006, making it 19 years old in 2025.

What condition is US 61 S over Mo 27 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 November 2023.

How much traffic does US 61 S over Mo 27 carry?

About 571 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is US 61 S over Mo 27?

The structure is 270 ft (82.2 m) long with a longest span of 146 ft (44.5 m) and a deck 47 ft wide.

Who owns US 61 S over Mo 27?

It is owned by the State Highway Agency.