US Bridges

US 65 S over Blackwater Rvr

Poor

Saline County, Missouri · S 26 T 49 N R 21 W · Structure no. 2524

Built
1985
40 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
521 ft
3 main spans
Daily traffic
3,618
2024 count
Owner
State
State Highway Agency

About this bridge

US 65 S over Blackwater Rvr is a steel continuous stringer/multi-beam or girder carrying US 65 S over Blackwater Rvr in Saline County, Missouri. It was built in 1985, so it is 40 years old, younger 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 3,618 vehicles a day, roughly 21% of them trucks, projected to reach 6,332 by 2044. The structure is 521 ft (158.8 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 65 S
CrossesBlackwater Rvr
LocationS 26 T 49 N R 21 W
RouteU.S. Route 65
Coordinates38.99219, -93.19668
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating36.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20 + Mod
Structure length521 ft (158.8 m)
Longest span115 ft (35.1 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,618 (2024)
Projected traffic6,332 by 2044
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 65 S over Blackwater Rvr built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 65 S over Blackwater Rvr 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 May 2023.

How much traffic does US 65 S over Blackwater Rvr carry?

About 3,618 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is US 65 S over Blackwater Rvr?

The structure is 521 ft (158.8 m) long with a longest span of 115 ft (35.1 m) and a deck 42 ft wide.

Who owns US 65 S over Blackwater Rvr?

It is owned by the State Highway Agency.