US Bridges

TR 261(BLUE Mound over Dry Branch

Poor

Macon County, Illinois · 2.8 MI W of Macon · Structure no. 058501600000000

Built
1973
52 years old
Condition
Poor
inspected January 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
39 ft
2 main spans
Daily traffic
275
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 261(BLUE Mound over Dry Branch is a aluminum, wrought iron, or cast iron culvert carrying TR 261(BLUE Mound over Dry Branch in Macon County, Illinois. It was built in 1973, so it is 52 years old, older than the Illinois average of 45.3 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.

It carries about 275 vehicles a day, roughly 4% of them trucks, projected to reach 278 by 2046. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 261(BLUE Mound
CrossesDry Branch
Location2.8 MI W of Macon
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates39.69908, -89.05021
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating57.9 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans2
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span20 ft (6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2020)
Projected traffic278 by 2046
Trucks4%
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 261(BLUE Mound over Dry Branch built?

It was built in 1973, making it 52 years old in 2025.

What condition is TR 261(BLUE Mound over Dry Branch 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 January 2024.

How much traffic does TR 261(BLUE Mound over Dry Branch carry?

About 275 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is TR 261(BLUE Mound over Dry Branch?

The structure is 39 ft (11.9 m) long with a longest span of 20 ft (6 m).

Who owns TR 261(BLUE Mound over Dry Branch?

It is owned by the Town or Township Highway Agency.