US Bridges

New Haven Road over Gans CR

Good

Boone County, Missouri · S 27 T 48 N R 12 W · Structure no. 36849

Built
2021
4 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

New Haven Road over Gans CR is a steel stringer/multi-beam or girder carrying New Haven Road over Gans CR in Boone County, Missouri. It was built in 2021, so it is 4 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 250 vehicles a day, roughly 6% of them trucks, projected to reach 475 by 2043. The structure is 69 ft (21.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNew Haven Road
CrossesGans CR
LocationS 27 T 48 N R 12 W
RouteCounty Highway 343
CountyBoone County
StateMissouri
Coordinates38.9125, -92.25111
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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.3 US tons
Inventory rating52.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length69 ft (21.1 m)
Longest span64 ft (19.6 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic475 by 2043
Trucks6%
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 New Haven Road over Gans CR built?

It was built in 2021, making it 4 years old in 2025.

What condition is New Haven Road over Gans 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 New Haven Road over Gans CR carry?

About 250 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is New Haven Road over Gans CR?

The structure is 69 ft (21.1 m) long with a longest span of 64 ft (19.6 m) and a deck 28 ft wide.

Who owns New Haven Road over Gans CR?

It is owned by the County Highway Agency.