US Bridges

275th RD over Br of Lk Thunderhe

Good

Putnam County, Missouri · S 28 T 66 N R 19 W · Structure no. 37078

Built
2024
1 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

275th RD over Br of Lk Thunderhe is a steel stringer/multi-beam or girder carrying 275th RD over Br of Lk Thunderhe in Putnam County, Missouri. It was built in 2024, so it is 1 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 22 by 2043. The structure is 80 ft (24.4 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries275th RD
CrossesBr of Lk Thunderhe
LocationS 28 T 66 N R 19 W
RouteCounty Highway 118
CountyPutnam County
StateMissouri
Coordinates40.49694, -93.04278
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic22 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 275th RD over Br of Lk Thunderhe built?

It was built in 2024, making it 1 years old in 2025.

What condition is 275th RD over Br of Lk Thunderhe in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does 275th RD over Br of Lk Thunderhe carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 275th RD over Br of Lk Thunderhe?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 25 ft wide.

Who owns 275th RD over Br of Lk Thunderhe?

It is owned by the County Highway Agency.