US Bridges

Gillespie RD over Br of Blue Br

Fair

Jackson County, Missouri · S 28 T 49 N R 29 W · Structure no. 16968

Built
1920
105 years old, rebuilt 1980
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
132
2024 count
Owner
County
County Highway Agency

About this bridge

Gillespie RD over Br of Blue Br is a steel stringer/multi-beam or girder carrying Gillespie RD over Br of Blue Br in Jackson County, Missouri. It was built in 1920 and reconstructed in 1980, so it is 105 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 132 vehicles a day, roughly 5% of them trucks, projected to reach 172 by 2044. The structure is 50 ft (15.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesGillespie RD
CrossesBr of Blue Br
LocationS 28 T 49 N R 29 W
RouteCounty Highway 138
Coordinates39.03335, -94.11449
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2024)
Projected traffic172 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gillespie RD over Br of Blue Br built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1980.

What condition is Gillespie RD over Br of Blue Br 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 February 2023.

How much traffic does Gillespie RD over Br of Blue Br carry?

About 132 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Gillespie RD over Br of Blue Br?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 30 ft wide.

Who owns Gillespie RD over Br of Blue Br?

It is owned by the County Highway Agency.