US Bridges

Maupin Lane over Cedar CR

Good

Boone County, Missouri · S 22 T 49 N R 11 W · Structure no. 30604

Built
2004
21 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

Maupin Lane over Cedar CR is a steel stringer/multi-beam or girder carrying Maupin Lane over Cedar CR in Boone County, Missouri. It was built in 2004, so it is 21 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2043. The structure is 85 ft (25.8 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMaupin Lane
CrossesCedar CR
LocationS 22 T 49 N R 11 W
RouteCounty Highway 311
Coordinates39.02146, -92.1308
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating64.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length85 ft (25.8 m)
Longest span81 ft (24.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic48 by 2043
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 Maupin Lane over Cedar CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Maupin Lane over Cedar CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Maupin Lane over Cedar CR carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Maupin Lane over Cedar CR?

The structure is 85 ft (25.8 m) long with a longest span of 81 ft (24.8 m) and a deck 25 ft wide.

Who owns Maupin Lane over Cedar CR?

It is owned by the County Highway Agency.