US Bridges

TR 149 over Little Mackinaw R

Fair

Tazewell County, Illinois · NE-34-T24NR2W · Structure no. 090503400000000

Built
1971
54 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
43 ft
2 main spans
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 149 over Little Mackinaw R is a concrete culvert carrying TR 149 over Little Mackinaw R in Tazewell County, Illinois. It was built in 1971, so it is 54 years old, older 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 5 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 75 vehicles a day, projected to reach 76 by 2046. The structure is 43 ft (13.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR 149
CrossesLittle Mackinaw R
LocationNE-34-T24NR2W
RouteCounty Highway 0
CountyTazewell County
StateIllinois
Coordinates40.49937, -89.31085
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating22.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span14 ft (4.3 m)
Deck width34 ft (10.4 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic76 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$158,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 149 over Little Mackinaw R built?

It was built in 1971, making it 54 years old in 2025.

What condition is TR 149 over Little Mackinaw R 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 January 2024.

How much traffic does TR 149 over Little Mackinaw R carry?

About 75 vehicles per day (2023 count).

How long is TR 149 over Little Mackinaw R?

The structure is 43 ft (13.1 m) long with a longest span of 14 ft (4.3 m) and a deck 34 ft wide.

Who owns TR 149 over Little Mackinaw R?

It is owned by the Town or Township Highway Agency.