US Bridges

TR 259A(BETHEL Rd) over Mosquito Creek

Fair

Macon County, Illinois · 3 MI NE Blue Mound · Structure no. 058324200000000

Built
1980
45 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
35
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 259A(BETHEL Rd) over Mosquito Creek is a prestressed concrete box beam or girders - multiple carrying TR 259A(BETHEL Rd) over Mosquito Creek in Macon County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 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 35 vehicles a day, roughly 3% of them trucks, projected to reach 35 by 2046. The structure is 65 ft (19.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 259A(BETHEL Rd)
CrossesMosquito Creek
Location3 MI NE Blue Mound
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates39.72467, -89.07376
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length65 ft (19.7 m)
Longest span63 ft (19.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2020)
Projected traffic35 by 2046
Trucks3%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 259A(BETHEL Rd) over Mosquito Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is TR 259A(BETHEL Rd) over Mosquito Creek 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 TR 259A(BETHEL Rd) over Mosquito Creek carry?

About 35 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is TR 259A(BETHEL Rd) over Mosquito Creek?

The structure is 65 ft (19.7 m) long with a longest span of 63 ft (19.1 m) and a deck 24 ft wide.

Who owns TR 259A(BETHEL Rd) over Mosquito Creek?

It is owned by the Town or Township Highway Agency.