US Bridges

FM 3163 (milam) over IH 35

Poor

Denton County, Texas · 4.70 MI N of US 380 · Structure no. 180610019502065

Built
1958
67 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
4 main spans
Daily traffic
3,577
2023 count
Owner
State
State Highway Agency

About this bridge

FM 3163 (milam) over IH 35 is a steel continuous stringer/multi-beam or girder carrying FM 3163 (milam) over IH 35 in Denton County, Texas. It was built in 1958, so it is 67 years old, older than the Texas average of 44.4 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 3,577 vehicles a day, roughly 4% of them trucks, projected to reach 6,990 by 2033. The structure is 272 ft (82.9 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM 3163 (milam)
CrossesIH 35
Location4.70 MI N of US 380
RouteState Highway 3163
CountyDenton County
StateTexas
Coordinates33.29885, -97.1778
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+1 approach)
Design loadOther
Structure length272 ft (82.9 m)
Longest span65 ft (19.8 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,577 (2023)
Projected traffic6,990 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$18,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 3163 (milam) over IH 35 built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM 3163 (milam) over IH 35 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 August 2023.

How much traffic does FM 3163 (milam) over IH 35 carry?

About 3,577 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is FM 3163 (milam) over IH 35?

The structure is 272 ft (82.9 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.

Who owns FM 3163 (milam) over IH 35?

It is owned by the State Highway Agency.