US Bridges

Mount Olive RD over Mcmullen Branch

Good

Jefferson County, Missouri · S 18 T 39 N R 5 E · Structure no. 37027

Built
2023
2 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
926
2023 count
Owner
County
County Highway Agency

About this bridge

Mount Olive RD over Mcmullen Branch is a prestressed concrete tee beam carrying Mount Olive RD over Mcmullen Branch in Jefferson County, Missouri. It was built in 2023, so it is 2 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 926 vehicles a day, roughly 10% of them trucks, projected to reach 1,852 by 2043. The structure is 92 ft (27.9 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMount Olive RD
CrossesMcmullen Branch
LocationS 18 T 39 N R 5 E
RouteCounty Highway 328
Coordinates38.09217, -90.5089
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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.3 US tons
Inventory rating63.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (27.9 m)
Longest span86 ft (26.2 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic926 (2023)
Projected traffic1,852 by 2043
Trucks10%
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 Mount Olive RD over Mcmullen Branch built?

It was built in 2023, making it 2 years old in 2025.

What condition is Mount Olive RD over Mcmullen Branch 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 February 2025.

How much traffic does Mount Olive RD over Mcmullen Branch carry?

About 926 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mount Olive RD over Mcmullen Branch?

The structure is 92 ft (27.9 m) long with a longest span of 86 ft (26.2 m) and a deck 35 ft wide.

Who owns Mount Olive RD over Mcmullen Branch?

It is owned by the County Highway Agency.