US Bridges

Maguire Blvd over S Fk of Grindstone

Good

Boone County, Missouri · S 20 T 48 N R 12 W · Structure no. 33734

Built
2009
16 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
268 ft
1 main span
Daily traffic
2,925
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maguire Blvd over S Fk of Grindstone is a prestressed concrete tee beam carrying Maguire Blvd over S 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 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 2,925 vehicles a day, roughly 5% of them trucks, projected to reach 5,119 by 2043. The structure is 268 ft (81.7 m) long and 52 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMaguire Blvd
CrossesS Fk of Grindstone
LocationS 20 T 48 N R 12 W
RouteCity Street 0
CountyBoone County
StateMissouri
Coordinates38.92922, -92.289
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating59.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length268 ft (81.7 m)
Longest span125 ft (38.1 m)
Deck width52 ft (15.7 m)
Roadway width38 ft (11.6 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 S Fk of Grindstone built?

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

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

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

How long is Maguire Blvd over S Fk of Grindstone?

The structure is 268 ft (81.7 m) long with a longest span of 125 ft (38.1 m) and a deck 52 ft wide.

Who owns Maguire Blvd over S Fk of Grindstone?

It is owned by the City or Municipal Highway Agency.