US Bridges

Michigan ST over Bills Br

FairClosed to traffic

Macon County, Missouri · S 18 T 58 N R 13 W · Structure no. 31489

Built
2003
22 years old
Condition
Fair
inspected December 2019
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Michigan ST over Bills Br is a steel stringer/multi-beam or girder carrying Michigan ST over Bills Br in Macon County, Missouri. It was built in 2003, so it is 22 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. Its operating status is: closed to all traffic.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 31 ft (9.3 m) long and 12 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMichigan ST
CrossesBills Br
LocationS 18 T 58 N R 13 W
RouteCounty Highway 214
CountyMacon County
StateMissouri
Coordinates39.83746, -92.38974
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2019
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span30 ft (9 m)
Deck width12 ft (3.8 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$289,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Michigan ST over Bills Br built?

It was built in 2003, making it 22 years old in 2025.

What condition is Michigan ST over Bills Br 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 December 2019.

How much traffic does Michigan ST over Bills Br carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Michigan ST over Bills Br?

The structure is 31 ft (9.3 m) long with a longest span of 30 ft (9 m) and a deck 12 ft wide.

Who owns Michigan ST over Bills Br?

It is owned by the County Highway Agency.