US Bridges

Lamms LN over Small CR

Fair

Pettis County, Missouri · S 17 T 45 N R 20 W · Structure no. 19298

Built
1925
100 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

Lamms LN over Small CR is a steel stringer/multi-beam or girder carrying Lamms LN over Small CR in Pettis County, Missouri. It was built in 1925, so it is 100 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 5 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 51 by 2044. The structure is 29 ft (8.8 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLamms LN
CrossesSmall CR
LocationS 17 T 45 N R 20 W
RouteCounty Highway 217
Coordinates38.67728, -93.13497
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic51 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Lamms LN over Small CR built?

It was built in 1925, making it 100 years old in 2025.

What condition is Lamms LN over Small 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 February 2024.

How much traffic does Lamms LN over Small CR carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Lamms LN over Small CR?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 28 ft wide.

Who owns Lamms LN over Small CR?

It is owned by the County Highway Agency.