US Bridges

Sacagawea RD over Palmer CR

Fair

Chariton County, Missouri · S 31 T 54 N R 19 W · Structure no. 22162

Built
1910
115 years old, rebuilt 1988
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
2 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Sacagawea RD over Palmer CR is a steel stringer/multi-beam or girder carrying Sacagawea RD over Palmer CR in Chariton County, Missouri. It was built in 1910 and reconstructed in 1988, so it is 115 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.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2044. The structure is 80 ft (24.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSacagawea RD
CrossesPalmer CR
LocationS 31 T 54 N R 19 W
RouteCounty Highway 342
CountyChariton County
StateMissouri
Coordinates39.44118, -93.08444
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length80 ft (24.4 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic39 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Sacagawea RD over Palmer CR built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1988.

What condition is Sacagawea RD over Palmer 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 September 2024.

How much traffic does Sacagawea RD over Palmer CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Sacagawea RD over Palmer CR?

The structure is 80 ft (24.4 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Sacagawea RD over Palmer CR?

It is owned by the County Highway Agency.