US Bridges

Ontario RD over Trib to Goodson CR

FairPosted for load

Macon County, Missouri · S 35 T 59 N R 13 W · Structure no. 18001

Built
1930
95 years old, rebuilt 1994
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Ontario RD over Trib to Goodson CR is a steel stringer/multi-beam or girder carrying Ontario RD over Trib to Goodson CR in Macon County, Missouri. It was built in 1930 and reconstructed in 1994, so it is 95 years old, older 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: posted for load restriction.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 23 ft (7 m) long and 15 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesOntario RD
CrossesTrib to Goodson CR
LocationS 35 T 59 N R 13 W
RouteCounty Highway 169
CountyMacon County
StateMissouri
Coordinates39.87364, -92.31805
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
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length23 ft (7 m)
Longest span22 ft (6.6 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.4 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 closed3.7 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 Ontario RD over Trib to Goodson CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1994.

What condition is Ontario RD over Trib to Goodson 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 December 2023.

How much traffic does Ontario RD over Trib to Goodson CR carry?

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

How long is Ontario RD over Trib to Goodson CR?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.6 m) and a deck 15 ft wide.

Who owns Ontario RD over Trib to Goodson CR?

It is owned by the County Highway Agency.