US Bridges

Rt F N over Spencer CR

Good

Ralls County, Missouri · S 15 T 54 N R 5 W · Structure no. 33757

Built
2011
14 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
181 ft
1 main span
Daily traffic
721
2024 count
Owner
State
State Highway Agency

About this bridge

Rt F N over Spencer CR is a prestressed concrete box beam or girders - single or spread carrying Rt F N over Spencer CR in Ralls County, Missouri. It was built in 2011, so it is 14 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 721 vehicles a day, roughly 6% of them trucks, projected to reach 1,045 by 2044. The structure is 181 ft (55.1 m) long and 26 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesRt F N
CrossesSpencer CR
LocationS 15 T 54 N R 5 W
RouteState Highway 0F
CountyRalls County
StateMissouri
Coordinates39.46342, -91.46012
Functional classRural Major 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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length181 ft (55.1 m)
Longest span90 ft (27.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic721 (2024)
Projected traffic1,045 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt F N over Spencer CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Rt F N over Spencer 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 November 2024.

How much traffic does Rt F N over Spencer CR carry?

About 721 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Rt F N over Spencer CR?

The structure is 181 ft (55.1 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns Rt F N over Spencer CR?

It is owned by the State Highway Agency.