US Bridges

US 65 N over Blackwater Rvr Ovr

Poor

Saline County, Missouri · S 26 T 49 N R 21 W · Structure no. 783

Built
1961
64 years old, rebuilt 1994
Condition
Poor
inspected December 2023
Type
Slab
Concrete Continuous
Length
178 ft
5 main spans
Daily traffic
3,585
2024 count
Owner
State
State Highway Agency

About this bridge

US 65 N over Blackwater Rvr Ovr is a concrete continuous slab carrying US 65 N over Blackwater Rvr Ovr in Saline County, Missouri. It was built in 1961 and reconstructed in 1994, so it is 64 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 3,585 vehicles a day, roughly 16% of them trucks, projected to reach 6,274 by 2044. The structure is 178 ft (54.3 m) long and 31 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesUS 65 N
CrossesBlackwater Rvr Ovr
LocationS 26 T 49 N R 21 W
RouteU.S. Route 65
Coordinates38.99486, -93.19636
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length178 ft (54.3 m)
Longest span36 ft (11 m)
Deck width31 ft (9.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,585 (2024)
Projected traffic6,274 by 2044
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemYes

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$1.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 65 N over Blackwater Rvr Ovr built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1994.

What condition is US 65 N over Blackwater Rvr Ovr 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 December 2023.

How much traffic does US 65 N over Blackwater Rvr Ovr carry?

About 3,585 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 65 N over Blackwater Rvr Ovr?

The structure is 178 ft (54.3 m) long with a longest span of 36 ft (11 m) and a deck 31 ft wide.

Who owns US 65 N over Blackwater Rvr Ovr?

It is owned by the State Highway Agency.