US Bridges

Mo 91 S over Dry CR

Fair

Bollinger County, Missouri · S 21 T 29 N R 10 E · Structure no. 5088

Built
1927
98 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
83 ft
3 main spans
Daily traffic
2,004
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 91 S over Dry CR is a concrete tee beam carrying Mo 91 S over Dry CR in Bollinger County, Missouri. It was built in 1927, so it is 98 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,004 vehicles a day, roughly 8% of them trucks, projected to reach 3,106 by 2044. The structure is 83 ft (25.3 m) long and 21 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesMo 91 S
CrossesDry CR
LocationS 21 T 29 N R 10 E
RouteState Highway 91
CountyBollinger County
StateMissouri
Coordinates37.16974, -89.94554
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length83 ft (25.3 m)
Longest span37 ft (11.4 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,004 (2024)
Projected traffic3,106 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$731,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 91 S over Dry CR built?

It was built in 1927, making it 98 years old in 2025.

What condition is Mo 91 S over Dry CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Mo 91 S over Dry CR carry?

About 2,004 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Mo 91 S over Dry CR?

The structure is 83 ft (25.3 m) long with a longest span of 37 ft (11.4 m) and a deck 21 ft wide.

Who owns Mo 91 S over Dry CR?

It is owned by the State Highway Agency.