US Bridges

SE91 over Deer CR

PoorPosted for load

Henry County, Missouri · S 12 T 41 N R 26 W · Structure no. 21893

Built
1950
75 years old
Condition
Poor
inspected February 2025
Type
Truss - Thru
Steel
Length
80 ft
1 main span
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

SE91 over Deer CR is a steel truss - thru carrying SE91 over Deer CR in Henry County, Missouri. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 210 by 2043. The structure is 80 ft (24.4 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSE91
CrossesDeer CR
LocationS 12 T 41 N R 26 W
RouteCounty Highway 329
CountyHenry County
StateMissouri
Coordinates38.35222, -93.74396
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating14.9 US tons
Inventory rating7.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length80 ft (24.4 m)
Longest span79 ft (24.1 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic210 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$599,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SE91 over Deer CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is SE91 over Deer CR 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 February 2025.

How much traffic does SE91 over Deer CR carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE91 over Deer CR?

The structure is 80 ft (24.4 m) long with a longest span of 79 ft (24.1 m) and a deck 14 ft wide.

Who owns SE91 over Deer CR?

It is owned by the County Highway Agency.