US Bridges

Mo 83 S over Nafziger Br

Poor

Hickory County, Missouri · S 16 T 37 N R 23 W · Structure no. 4989

Built
1926
99 years old
Condition
Poor
inspected June 2023
Type
Slab
Concrete
Length
67 ft
3 main spans
Daily traffic
537
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 83 S over Nafziger Br is a concrete slab carrying Mo 83 S over Nafziger Br in Hickory County, Missouri. It was built in 1926, so it is 99 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 537 vehicles a day, roughly 6% of them trucks, projected to reach 725 by 2044. The structure is 67 ft (20.4 m) long and 23 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesMo 83 S
CrossesNafziger Br
LocationS 16 T 37 N R 23 W
RouteState Highway 83
CountyHickory County
StateMissouri
Coordinates37.95459, -93.47458
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length67 ft (20.4 m)
Longest span23 ft (6.9 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic537 (2024)
Projected traffic725 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$800,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 83 S over Nafziger Br built?

It was built in 1926, making it 99 years old in 2025.

What condition is Mo 83 S over Nafziger Br in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does Mo 83 S over Nafziger Br carry?

About 537 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 83 S over Nafziger Br?

The structure is 67 ft (20.4 m) long with a longest span of 23 ft (6.9 m) and a deck 23 ft wide.

Who owns Mo 83 S over Nafziger Br?

It is owned by the State Highway Agency.