US Bridges

Maguire Blvd over N Fk of Grindstone

Good

Boone County, Missouri · S 20 T 48 N R 12 W · Structure no. 33735

Built
2009
16 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
263 ft
1 main span
Daily traffic
2,925
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maguire Blvd over N Fk of Grindstone is a steel stringer/multi-beam or girder carrying Maguire Blvd over N Fk of Grindstone in Boone County, Missouri. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,925 vehicles a day, roughly 5% of them trucks, projected to reach 5,119 by 2043. The structure is 263 ft (80.1 m) long and 61 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMaguire Blvd
CrossesN Fk of Grindstone
LocationS 20 T 48 N R 12 W
RouteCity Street 0
Coordinates38.93175, -92.28986
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length263 ft (80.1 m)
Longest span100 ft (30.5 m)
Deck width61 ft (18.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,925 (2023)
Projected traffic5,119 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Maguire Blvd over N Fk of Grindstone built?

It was built in 2009, making it 16 years old in 2025.

What condition is Maguire Blvd over N Fk of Grindstone 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 Maguire Blvd over N Fk of Grindstone carry?

About 2,925 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Maguire Blvd over N Fk of Grindstone?

The structure is 263 ft (80.1 m) long with a longest span of 100 ft (30.5 m) and a deck 61 ft wide.

Who owns Maguire Blvd over N Fk of Grindstone?

It is owned by the City or Municipal Highway Agency.