US Bridges

N 4th Street over Mount Calm Draw

Fair

Hill County, Texas · 0.2 MI NE of FM 339 · Structure no. 091100L00075001

Built
1920
105 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
123
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

N 4th Street over Mount Calm Draw is a concrete culvert carrying N 4th Street over Mount Calm Draw in Hill County, Texas. It was built in 1920, so it is 105 years old, older than the Texas average of 44.4 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 123 vehicles a day, projected to reach 80 by 2031. The structure is 27 ft (8.2 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesN 4th Street
CrossesMount Calm Draw
Location0.2 MI NE of FM 339
RouteCity Street 0
CountyHill County
StateTexas
Coordinates31.76102, -96.87949
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
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 inspectionDecember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic123 (2020)
Projected traffic80 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$255,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N 4th Street over Mount Calm Draw built?

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

What condition is N 4th Street over Mount Calm Draw 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 N 4th Street over Mount Calm Draw carry?

About 123 vehicles per day (2020 count).

How long is N 4th Street over Mount Calm Draw?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 29 ft wide.

Who owns N 4th Street over Mount Calm Draw?

It is owned by the City or Municipal Highway Agency.