US Bridges

Mt Zion RD over Branch of N Fork

Good

Lafayette County, Missouri · S 31 T 48 N R 27 W · Structure no. 36078

Built
2018
7 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

Mt Zion RD over Branch of N Fork is a steel stringer/multi-beam or girder carrying Mt Zion RD over Branch of N Fork in Lafayette County, Missouri. It was built in 2018, so it is 7 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2044. The structure is 55 ft (16.8 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMt Zion RD
CrossesBranch of N Fork
LocationS 31 T 48 N R 27 W
RouteCounty Highway 411
Coordinates38.9267, -93.9379
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101.2 US tons
Inventory rating77.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span54 ft (16.4 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic39 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Mt Zion RD over Branch of N Fork built?

It was built in 2018, making it 7 years old in 2025.

What condition is Mt Zion RD over Branch of N Fork 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 November 2023.

How much traffic does Mt Zion RD over Branch of N Fork carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mt Zion RD over Branch of N Fork?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.4 m) and a deck 25 ft wide.

Who owns Mt Zion RD over Branch of N Fork?

It is owned by the County Highway Agency.