US Bridges

High Point Lane over Trib Lit Bonne Fem

Fair

Boone County, Missouri · S 29 T 51 N R 12 W · Structure no. 31940

Built
2005
20 years old
Condition
Fair
inspected December 2024
Type
Channel Beam
Concrete
Length
41 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

High Point Lane over Trib Lit Bonne Fem is a concrete channel beam carrying High Point Lane over Trib Lit Bonne Fem in Boone County, Missouri. It was built in 2005, so it is 20 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 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 475 by 2043. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHigh Point Lane
CrossesTrib Lit Bonne Fem
LocationS 29 T 51 N R 12 W
RouteCounty Highway 494
Coordinates38.85951, -92.34536
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic475 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was High Point Lane over Trib Lit Bonne Fem built?

It was built in 2005, making it 20 years old in 2025.

What condition is High Point Lane over Trib Lit Bonne Fem 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 2024.

How much traffic does High Point Lane over Trib Lit Bonne Fem carry?

About 250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is High Point Lane over Trib Lit Bonne Fem?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.

Who owns High Point Lane over Trib Lit Bonne Fem?

It is owned by the County Highway Agency.