US Bridges

SR 18 over Fork of Mud Creek

Good

Benton County, Indiana · 02.45 W US 41 · Structure no. 004531

Built
2020
5 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
360
2020 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Fork of Mud Creek is a concrete culvert carrying SR 18 over Fork of Mud Creek in Benton County, Indiana. It was built in 2020, so it is 5 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 360 vehicles a day, roughly 26% of them trucks, projected to reach 360 by 2040. The structure is 36 ft (11.1 m) long and 53 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesSR 18
CrossesFork of Mud Creek
Location02.45 W US 41
RouteState Highway 18
StateIndiana
Coordinates40.62194, -87.42749
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
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 rating61.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length36 ft (11.1 m)
Longest span34 ft (10.5 m)
Deck width53 ft (16.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2020)
Projected traffic360 by 2040
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 18 over Fork of Mud Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR 18 over Fork of Mud Creek 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 March 2023.

How much traffic does SR 18 over Fork of Mud Creek carry?

About 360 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is SR 18 over Fork of Mud Creek?

The structure is 36 ft (11.1 m) long with a longest span of 34 ft (10.5 m) and a deck 53 ft wide.

Who owns SR 18 over Fork of Mud Creek?

It is owned by the State Highway Agency.